1290205700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{631}}^1$

素因数の和:802

約数の個数: 144

約数和(自身を含む): 3370450944

約数和(自身を除く): 2080245244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 127, 140, 161, 175, 230, 254, 322, 350, 460, 508, 575, 631, 635, 644, 700, 805, 889, 1150, 1262, 1270, 1610, 1778, 2300, 2524, 2540, 2921, 3155, 3175, 3220, 3556, 4025, 4417, 4445, 5842, 6310, 6350, 8050, 8834, 8890, 11684, 12620, 12700, 14513, 14605, 15775, 16100, 17668, 17780, 20447, 22085, 22225, 29026, 29210, 31550, 40894, 44170, 44450, 58052, 58420, 63100, 72565, 73025, 80137, 81788, 88340, 88900, 101591, 102235, 110425, 145130, 146050, 160274, 203182, 204470, 220850, 290260, 292100, 320548, 362825, 400685, 406364, 408940, 441700, 507955, 511175, 560959, 725650, 801370, 1015910, 1022350, 1121918, 1451300, 1602740, 1843151, 2003425, 2031820, 2044700, 2243836, 2539775, 2804795, 3686302, 4006850, 5079550, 5609590, 7372604, 8013700, 9215755, 10159100, 11219180, 12902057, 14023975, 18431510, 25804114, 28047950, 36863020, 46078775, 51608228, 56095900, 64510285, 92157550, 129020570, 184315100, 258041140, 322551425, 645102850, 1290205700]

約数ペア:

[(1, 1290205700), (2, 645102850), (4, 322551425), (5, 258041140), (7, 184315100), (10, 129020570), (14, 92157550), (20, 64510285), (23, 56095900), (25, 51608228), (28, 46078775), (35, 36863020), (46, 28047950), (50, 25804114), (70, 18431510), (92, 14023975), (100, 12902057), (115, 11219180), (127, 10159100), (140, 9215755), (161, 8013700), (175, 7372604), (230, 5609590), (254, 5079550), (322, 4006850), (350, 3686302), (460, 2804795), (508, 2539775), (575, 2243836), (631, 2044700), (635, 2031820), (644, 2003425), (700, 1843151), (805, 1602740), (889, 1451300), (1150, 1121918), (1262, 1022350), (1270, 1015910), (1610, 801370), (1778, 725650), (2300, 560959), (2524, 511175), (2540, 507955), (2921, 441700), (3155, 408940), (3175, 406364), (3220, 400685), (3556, 362825), (4025, 320548), (4417, 292100), (4445, 290260), (5842, 220850), (6310, 204470), (6350, 203182), (8050, 160274), (8834, 146050), (8890, 145130), (11684, 110425), (12620, 102235), (12700, 101591), (14513, 88900), (14605, 88340), (15775, 81788), (16100, 80137), (17668, 73025), (17780, 72565), (20447, 63100), (22085, 58420), (22225, 58052), (29026, 44450), (29210, 44170), (31550, 40894)]