81270540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:278

約数の個数: 240

約数和(自身を含む): 291991392

約数和(自身を除く): 210720852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 27, 30, 34, 36, 39, 45, 51, 52, 54, 60, 65, 68, 78, 81, 85, 90, 102, 108, 117, 130, 135, 153, 156, 162, 170, 180, 195, 204, 221, 227, 234, 255, 260, 270, 306, 324, 340, 351, 390, 405, 442, 454, 459, 468, 510, 540, 585, 612, 663, 681, 702, 765, 780, 810, 884, 908, 918, 1020, 1053, 1105, 1135, 1170, 1326, 1362, 1377, 1404, 1530, 1620, 1755, 1836, 1989, 2043, 2106, 2210, 2270, 2295, 2340, 2652, 2724, 2754, 2951, 3060, 3315, 3405, 3510, 3859, 3978, 4086, 4212, 4420, 4540, 4590, 5265, 5508, 5902, 5967, 6129, 6630, 6810, 6885, 7020, 7718, 7956, 8172, 8853, 9180, 9945, 10215, 10530, 11577, 11804, 11934, 12258, 13260, 13620, 13770, 14755, 15436, 17706, 17901, 18387, 19295, 19890, 20430, 21060, 23154, 23868, 24516, 26559, 27540, 29510, 29835, 30645, 34731, 35412, 35802, 36774, 38590, 39780, 40860, 44265, 46308, 50167, 53118, 57885, 59020, 59670, 61290, 69462, 71604, 73548, 77180, 79677, 88530, 89505, 91935, 100334, 104193, 106236, 115770, 119340, 122580, 132795, 138924, 150501, 159354, 173655, 177060, 179010, 183870, 200668, 208386, 231540, 239031, 250835, 265590, 301002, 312579, 318708, 347310, 358020, 367740, 398385, 416772, 451503, 478062, 501670, 520965, 531180, 602004, 625158, 694620, 752505, 796770, 903006, 956124, 1003340, 1041930, 1195155, 1250316, 1354509, 1505010, 1562895, 1593540, 1806012, 2083860, 2257515, 2390310, 2709018, 3010020, 3125790, 4063527, 4515030, 4780620, 5418036, 6251580, 6772545, 8127054, 9030060, 13545090, 16254108, 20317635, 27090180, 40635270, 81270540]

約数ペア:

[(1, 81270540), (2, 40635270), (3, 27090180), (4, 20317635), (5, 16254108), (6, 13545090), (9, 9030060), (10, 8127054), (12, 6772545), (13, 6251580), (15, 5418036), (17, 4780620), (18, 4515030), (20, 4063527), (26, 3125790), (27, 3010020), (30, 2709018), (34, 2390310), (36, 2257515), (39, 2083860), (45, 1806012), (51, 1593540), (52, 1562895), (54, 1505010), (60, 1354509), (65, 1250316), (68, 1195155), (78, 1041930), (81, 1003340), (85, 956124), (90, 903006), (102, 796770), (108, 752505), (117, 694620), (130, 625158), (135, 602004), (153, 531180), (156, 520965), (162, 501670), (170, 478062), (180, 451503), (195, 416772), (204, 398385), (221, 367740), (227, 358020), (234, 347310), (255, 318708), (260, 312579), (270, 301002), (306, 265590), (324, 250835), (340, 239031), (351, 231540), (390, 208386), (405, 200668), (442, 183870), (454, 179010), (459, 177060), (468, 173655), (510, 159354), (540, 150501), (585, 138924), (612, 132795), (663, 122580), (681, 119340), (702, 115770), (765, 106236), (780, 104193), (810, 100334), (884, 91935), (908, 89505), (918, 88530), (1020, 79677), (1053, 77180), (1105, 73548), (1135, 71604), (1170, 69462), (1326, 61290), (1362, 59670), (1377, 59020), (1404, 57885), (1530, 53118), (1620, 50167), (1755, 46308), (1836, 44265), (1989, 40860), (2043, 39780), (2106, 38590), (2210, 36774), (2270, 35802), (2295, 35412), (2340, 34731), (2652, 30645), (2724, 29835), (2754, 29510), (2951, 27540), (3060, 26559), (3315, 24516), (3405, 23868), (3510, 23154), (3859, 21060), (3978, 20430), (4086, 19890), (4212, 19295), (4420, 18387), (4540, 17901), (4590, 17706), (5265, 15436), (5508, 14755), (5902, 13770), (5967, 13620), (6129, 13260), (6630, 12258), (6810, 11934), (6885, 11804), (7020, 11577), (7718, 10530), (7956, 10215), (8172, 9945), (8853, 9180)]