20158871840

素因数分解:

$2^5\times 5^1\times {\mathrm{463}}^1\times {\mathrm{503}}^1\times {\mathrm{541}}^1$

素因数の和:1522

約数の個数: 96

約数和(自身を含む): 47911481856

約数和(自身を除く): 27752610016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 463, 503, 541, 926, 1006, 1082, 1852, 2012, 2164, 2315, 2515, 2705, 3704, 4024, 4328, 4630, 5030, 5410, 7408, 8048, 8656, 9260, 10060, 10820, 14816, 16096, 17312, 18520, 20120, 21640, 37040, 40240, 43280, 74080, 80480, 86560, 232889, 250483, 272123, 465778, 500966, 544246, 931556, 1001932, 1088492, 1164445, 1252415, 1360615, 1863112, 2003864, 2176984, 2328890, 2504830, 2721230, 3726224, 4007728, 4353968, 4657780, 5009660, 5442460, 7452448, 8015456, 8707936, 9315560, 10019320, 10884920, 18631120, 20038640, 21769840, 37262240, 40077280, 43539680, 125992949, 251985898, 503971796, 629964745, 1007943592, 1259929490, 2015887184, 2519858980, 4031774368, 5039717960, 10079435920, 20158871840]

約数ペア:

[(1, 20158871840), (2, 10079435920), (4, 5039717960), (5, 4031774368), (8, 2519858980), (10, 2015887184), (16, 1259929490), (20, 1007943592), (32, 629964745), (40, 503971796), (80, 251985898), (160, 125992949), (463, 43539680), (503, 40077280), (541, 37262240), (926, 21769840), (1006, 20038640), (1082, 18631120), (1852, 10884920), (2012, 10019320), (2164, 9315560), (2315, 8707936), (2515, 8015456), (2705, 7452448), (3704, 5442460), (4024, 5009660), (4328, 4657780), (4630, 4353968), (5030, 4007728), (5410, 3726224), (7408, 2721230), (8048, 2504830), (8656, 2328890), (9260, 2176984), (10060, 2003864), (10820, 1863112), (14816, 1360615), (16096, 1252415), (17312, 1164445), (18520, 1088492), (20120, 1001932), (21640, 931556), (37040, 544246), (40240, 500966), (43280, 465778), (74080, 272123), (80480, 250483), (86560, 232889)]