19497729940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{7297}}^1$

素因数の和:7601

約数の個数: 96

約数和(自身を含む): 45315325440

約数和(自身を除く): 25817595500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 239, 260, 430, 478, 559, 860, 956, 1118, 1195, 2236, 2390, 2795, 3107, 4780, 5590, 6214, 7297, 10277, 11180, 12428, 14594, 15535, 20554, 29188, 31070, 36485, 41108, 51385, 62140, 72970, 94861, 102770, 133601, 145940, 189722, 205540, 267202, 313771, 379444, 474305, 534404, 627542, 668005, 948610, 1255084, 1336010, 1568855, 1743983, 1897220, 2672020, 3137710, 3487966, 4079023, 6275420, 6975932, 8158046, 8719915, 16316092, 17439830, 20395115, 22671779, 34879660, 40790230, 45343558, 74991269, 81580460, 90687116, 113358895, 149982538, 226717790, 299965076, 374956345, 453435580, 749912690, 974886497, 1499825380, 1949772994, 3899545988, 4874432485, 9748864970, 19497729940]

約数ペア:

[(1, 19497729940), (2, 9748864970), (4, 4874432485), (5, 3899545988), (10, 1949772994), (13, 1499825380), (20, 974886497), (26, 749912690), (43, 453435580), (52, 374956345), (65, 299965076), (86, 226717790), (130, 149982538), (172, 113358895), (215, 90687116), (239, 81580460), (260, 74991269), (430, 45343558), (478, 40790230), (559, 34879660), (860, 22671779), (956, 20395115), (1118, 17439830), (1195, 16316092), (2236, 8719915), (2390, 8158046), (2795, 6975932), (3107, 6275420), (4780, 4079023), (5590, 3487966), (6214, 3137710), (7297, 2672020), (10277, 1897220), (11180, 1743983), (12428, 1568855), (14594, 1336010), (15535, 1255084), (20554, 948610), (29188, 668005), (31070, 627542), (36485, 534404), (41108, 474305), (51385, 379444), (62140, 313771), (72970, 267202), (94861, 205540), (102770, 189722), (133601, 145940)]