261591330

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:353

約数の個数: 256

約数和(自身を含む): 873234432

約数和(自身を除く): 611643102

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 26, 30, 31, 33, 35, 39, 42, 55, 62, 65, 66, 70, 77, 78, 91, 93, 105, 110, 130, 143, 154, 155, 165, 182, 186, 195, 210, 217, 231, 273, 281, 286, 310, 330, 341, 385, 390, 403, 429, 434, 455, 462, 465, 546, 562, 651, 682, 715, 770, 806, 843, 858, 910, 930, 1001, 1023, 1085, 1155, 1209, 1302, 1365, 1405, 1430, 1686, 1705, 1967, 2002, 2015, 2046, 2145, 2170, 2310, 2387, 2418, 2730, 2810, 2821, 3003, 3091, 3255, 3410, 3653, 3934, 4030, 4215, 4290, 4433, 4774, 5005, 5115, 5642, 5901, 6006, 6045, 6182, 6510, 7161, 7306, 8430, 8463, 8711, 8866, 9273, 9835, 10010, 10230, 10959, 11802, 11935, 12090, 13299, 14105, 14322, 15015, 15455, 16926, 17422, 18265, 18546, 19670, 21637, 21918, 22165, 23870, 25571, 26133, 26598, 28210, 29505, 30030, 30910, 31031, 35805, 36530, 40183, 42315, 43274, 43555, 44330, 46365, 51142, 52266, 54795, 59010, 60977, 62062, 64911, 66495, 71610, 76713, 80366, 84630, 87110, 92730, 93093, 95821, 108185, 109590, 113243, 120549, 121954, 127855, 129822, 130665, 132990, 153426, 155155, 182931, 186186, 191642, 200915, 216370, 226486, 241098, 255710, 261330, 281281, 287463, 304885, 310310, 324555, 339729, 365862, 383565, 401830, 465465, 479105, 562562, 566215, 574926, 602745, 609770, 649110, 670747, 679458, 767130, 792701, 843843, 914655, 930930, 958210, 1132430, 1205490, 1245673, 1341494, 1406405, 1437315, 1585402, 1687686, 1698645, 1829310, 2012241, 2378103, 2491346, 2812810, 2874630, 3353735, 3397290, 3737019, 3963505, 4024482, 4219215, 4756206, 6228365, 6707470, 7474038, 7927010, 8438430, 8719711, 10061205, 11890515, 12456730, 17439422, 18685095, 20122410, 23781030, 26159133, 37370190, 43598555, 52318266, 87197110, 130795665, 261591330]

約数ペア:

[(1, 261591330), (2, 130795665), (3, 87197110), (5, 52318266), (6, 43598555), (7, 37370190), (10, 26159133), (11, 23781030), (13, 20122410), (14, 18685095), (15, 17439422), (21, 12456730), (22, 11890515), (26, 10061205), (30, 8719711), (31, 8438430), (33, 7927010), (35, 7474038), (39, 6707470), (42, 6228365), (55, 4756206), (62, 4219215), (65, 4024482), (66, 3963505), (70, 3737019), (77, 3397290), (78, 3353735), (91, 2874630), (93, 2812810), (105, 2491346), (110, 2378103), (130, 2012241), (143, 1829310), (154, 1698645), (155, 1687686), (165, 1585402), (182, 1437315), (186, 1406405), (195, 1341494), (210, 1245673), (217, 1205490), (231, 1132430), (273, 958210), (281, 930930), (286, 914655), (310, 843843), (330, 792701), (341, 767130), (385, 679458), (390, 670747), (403, 649110), (429, 609770), (434, 602745), (455, 574926), (462, 566215), (465, 562562), (546, 479105), (562, 465465), (651, 401830), (682, 383565), (715, 365862), (770, 339729), (806, 324555), (843, 310310), (858, 304885), (910, 287463), (930, 281281), (1001, 261330), (1023, 255710), (1085, 241098), (1155, 226486), (1209, 216370), (1302, 200915), (1365, 191642), (1405, 186186), (1430, 182931), (1686, 155155), (1705, 153426), (1967, 132990), (2002, 130665), (2015, 129822), (2046, 127855), (2145, 121954), (2170, 120549), (2310, 113243), (2387, 109590), (2418, 108185), (2730, 95821), (2810, 93093), (2821, 92730), (3003, 87110), (3091, 84630), (3255, 80366), (3410, 76713), (3653, 71610), (3934, 66495), (4030, 64911), (4215, 62062), (4290, 60977), (4433, 59010), (4774, 54795), (5005, 52266), (5115, 51142), (5642, 46365), (5901, 44330), (6006, 43555), (6045, 43274), (6182, 42315), (6510, 40183), (7161, 36530), (7306, 35805), (8430, 31031), (8463, 30910), (8711, 30030), (8866, 29505), (9273, 28210), (9835, 26598), (10010, 26133), (10230, 25571), (10959, 23870), (11802, 22165), (11935, 21918), (12090, 21637), (13299, 19670), (14105, 18546), (14322, 18265), (15015, 17422), (15455, 16926)]