439975640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:813

約数の個数: 128

約数和(自身を含む): 1146337920

約数和(自身を除く): 706362280

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 71, 85, 104, 130, 136, 142, 170, 221, 260, 284, 340, 355, 442, 520, 568, 680, 701, 710, 884, 923, 1105, 1207, 1402, 1420, 1768, 1846, 2210, 2414, 2804, 2840, 3505, 3692, 4420, 4615, 4828, 5608, 6035, 7010, 7384, 8840, 9113, 9230, 9656, 11917, 12070, 14020, 15691, 18226, 18460, 23834, 24140, 28040, 31382, 36452, 36920, 45565, 47668, 48280, 49771, 59585, 62764, 72904, 78455, 91130, 95336, 99542, 119170, 125528, 154921, 156910, 182260, 199084, 238340, 248855, 309842, 313820, 364520, 398168, 476680, 497710, 619684, 627640, 647023, 774605, 846107, 995420, 1239368, 1294046, 1549210, 1692214, 1990840, 2588092, 3098420, 3235115, 3384428, 4230535, 5176184, 6196840, 6470230, 6768856, 8461070, 10999391, 12940460, 16922140, 21998782, 25880920, 33844280, 43997564, 54996955, 87995128, 109993910, 219987820, 439975640]

約数ペア:

[(1, 439975640), (2, 219987820), (4, 109993910), (5, 87995128), (8, 54996955), (10, 43997564), (13, 33844280), (17, 25880920), (20, 21998782), (26, 16922140), (34, 12940460), (40, 10999391), (52, 8461070), (65, 6768856), (68, 6470230), (71, 6196840), (85, 5176184), (104, 4230535), (130, 3384428), (136, 3235115), (142, 3098420), (170, 2588092), (221, 1990840), (260, 1692214), (284, 1549210), (340, 1294046), (355, 1239368), (442, 995420), (520, 846107), (568, 774605), (680, 647023), (701, 627640), (710, 619684), (884, 497710), (923, 476680), (1105, 398168), (1207, 364520), (1402, 313820), (1420, 309842), (1768, 248855), (1846, 238340), (2210, 199084), (2414, 182260), (2804, 156910), (2840, 154921), (3505, 125528), (3692, 119170), (4420, 99542), (4615, 95336), (4828, 91130), (5608, 78455), (6035, 72904), (7010, 62764), (7384, 59585), (8840, 49771), (9113, 48280), (9230, 47668), (9656, 45565), (11917, 36920), (12070, 36452), (14020, 31382), (15691, 28040), (18226, 24140), (18460, 23834)]