81737500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{503}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 192925152

約数和(自身を除く): 111187652

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 503, 625, 650, 1006, 1250, 1300, 1625, 2012, 2500, 2515, 3125, 3250, 5030, 6250, 6500, 6539, 8125, 10060, 12500, 12575, 13078, 16250, 25150, 26156, 32500, 32695, 40625, 50300, 62875, 65390, 81250, 125750, 130780, 162500, 163475, 251500, 314375, 326950, 628750, 653900, 817375, 1257500, 1571875, 1634750, 3143750, 3269500, 4086875, 6287500, 8173750, 16347500, 20434375, 40868750, 81737500]

約数ペア:

[(1, 81737500), (2, 40868750), (4, 20434375), (5, 16347500), (10, 8173750), (13, 6287500), (20, 4086875), (25, 3269500), (26, 3143750), (50, 1634750), (52, 1571875), (65, 1257500), (100, 817375), (125, 653900), (130, 628750), (250, 326950), (260, 314375), (325, 251500), (500, 163475), (503, 162500), (625, 130780), (650, 125750), (1006, 81250), (1250, 65390), (1300, 62875), (1625, 50300), (2012, 40625), (2500, 32695), (2515, 32500), (3125, 26156), (3250, 25150), (5030, 16250), (6250, 13078), (6500, 12575), (6539, 12500), (8125, 10060)]