20279821250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{29023}}^1$

素因数の和:29101

約数の個数: 80

約数和(自身を含む): 41889990912

約数和(自身を除く): 21610169662

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 125, 130, 215, 250, 325, 430, 559, 625, 650, 1075, 1118, 1250, 1625, 2150, 2795, 3250, 5375, 5590, 8125, 10750, 13975, 16250, 26875, 27950, 29023, 53750, 58046, 69875, 139750, 145115, 290230, 349375, 377299, 698750, 725575, 754598, 1247989, 1451150, 1886495, 2495978, 3627875, 3772990, 6239945, 7255750, 9432475, 12479890, 16223857, 18139375, 18864950, 31199725, 32447714, 36278750, 47162375, 62399450, 81119285, 94324750, 155998625, 162238570, 235811875, 311997250, 405596425, 471623750, 779993125, 811192850, 1559986250, 2027982125, 4055964250, 10139910625, 20279821250]

約数ペア:

[(1, 20279821250), (2, 10139910625), (5, 4055964250), (10, 2027982125), (13, 1559986250), (25, 811192850), (26, 779993125), (43, 471623750), (50, 405596425), (65, 311997250), (86, 235811875), (125, 162238570), (130, 155998625), (215, 94324750), (250, 81119285), (325, 62399450), (430, 47162375), (559, 36278750), (625, 32447714), (650, 31199725), (1075, 18864950), (1118, 18139375), (1250, 16223857), (1625, 12479890), (2150, 9432475), (2795, 7255750), (3250, 6239945), (5375, 3772990), (5590, 3627875), (8125, 2495978), (10750, 1886495), (13975, 1451150), (16250, 1247989), (26875, 754598), (27950, 725575), (29023, 698750), (53750, 377299), (58046, 349375), (69875, 290230), (139750, 145115)]