20120863750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{4603}}^1$

素因数の和:4907

約数の個数: 80

約数和(自身を含む): 40775510160

約数和(自身を除く): 20654646410

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 269, 325, 538, 625, 650, 1250, 1345, 1625, 2690, 3250, 3497, 4603, 6725, 6994, 8125, 9206, 13450, 16250, 17485, 23015, 33625, 34970, 46030, 59839, 67250, 87425, 115075, 119678, 168125, 174850, 230150, 299195, 336250, 437125, 575375, 598390, 874250, 1150750, 1238207, 1495975, 2185625, 2476414, 2876875, 2991950, 4371250, 5753750, 6191035, 7479875, 12382070, 14959750, 16096691, 30955175, 32193382, 37399375, 61910350, 74798750, 80483455, 154775875, 160966910, 309551750, 402417275, 773879375, 804834550, 1547758750, 2012086375, 4024172750, 10060431875, 20120863750]

約数ペア:

[(1, 20120863750), (2, 10060431875), (5, 4024172750), (10, 2012086375), (13, 1547758750), (25, 804834550), (26, 773879375), (50, 402417275), (65, 309551750), (125, 160966910), (130, 154775875), (250, 80483455), (269, 74798750), (325, 61910350), (538, 37399375), (625, 32193382), (650, 30955175), (1250, 16096691), (1345, 14959750), (1625, 12382070), (2690, 7479875), (3250, 6191035), (3497, 5753750), (4603, 4371250), (6725, 2991950), (6994, 2876875), (8125, 2476414), (9206, 2185625), (13450, 1495975), (16250, 1238207), (17485, 1150750), (23015, 874250), (33625, 598390), (34970, 575375), (46030, 437125), (59839, 336250), (67250, 299195), (87425, 230150), (115075, 174850), (119678, 168125)]