201720240

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2056

約数の個数: 160

約数和(自身を含む): 709954560

約数和(自身を除く): 508234320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 47, 48, 54, 60, 72, 80, 90, 94, 108, 120, 135, 141, 144, 180, 188, 216, 235, 240, 270, 282, 360, 376, 423, 432, 470, 540, 564, 705, 720, 752, 846, 940, 1080, 1128, 1269, 1410, 1692, 1880, 1987, 2115, 2160, 2256, 2538, 2820, 3384, 3760, 3974, 4230, 5076, 5640, 5961, 6345, 6768, 7948, 8460, 9935, 10152, 11280, 11922, 12690, 15896, 16920, 17883, 19870, 20304, 23844, 25380, 29805, 31792, 33840, 35766, 39740, 47688, 50760, 53649, 59610, 71532, 79480, 89415, 93389, 95376, 101520, 107298, 119220, 143064, 158960, 178830, 186778, 214596, 238440, 268245, 280167, 286128, 357660, 373556, 429192, 466945, 476880, 536490, 560334, 715320, 747112, 840501, 858384, 933890, 1072980, 1120668, 1400835, 1430640, 1494224, 1681002, 1867780, 2145960, 2241336, 2521503, 2801670, 3362004, 3735560, 4202505, 4291920, 4482672, 5043006, 5603340, 6724008, 7471120, 8405010, 10086012, 11206680, 12607515, 13448016, 16810020, 20172024, 22413360, 25215030, 33620040, 40344048, 50430060, 67240080, 100860120, 201720240]

約数ペア:

[(1, 201720240), (2, 100860120), (3, 67240080), (4, 50430060), (5, 40344048), (6, 33620040), (8, 25215030), (9, 22413360), (10, 20172024), (12, 16810020), (15, 13448016), (16, 12607515), (18, 11206680), (20, 10086012), (24, 8405010), (27, 7471120), (30, 6724008), (36, 5603340), (40, 5043006), (45, 4482672), (47, 4291920), (48, 4202505), (54, 3735560), (60, 3362004), (72, 2801670), (80, 2521503), (90, 2241336), (94, 2145960), (108, 1867780), (120, 1681002), (135, 1494224), (141, 1430640), (144, 1400835), (180, 1120668), (188, 1072980), (216, 933890), (235, 858384), (240, 840501), (270, 747112), (282, 715320), (360, 560334), (376, 536490), (423, 476880), (432, 466945), (470, 429192), (540, 373556), (564, 357660), (705, 286128), (720, 280167), (752, 268245), (846, 238440), (940, 214596), (1080, 186778), (1128, 178830), (1269, 158960), (1410, 143064), (1692, 119220), (1880, 107298), (1987, 101520), (2115, 95376), (2160, 93389), (2256, 89415), (2538, 79480), (2820, 71532), (3384, 59610), (3760, 53649), (3974, 50760), (4230, 47688), (5076, 39740), (5640, 35766), (5961, 33840), (6345, 31792), (6768, 29805), (7948, 25380), (8460, 23844), (9935, 20304), (10152, 19870), (11280, 17883), (11922, 16920), (12690, 15896)]