20047560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 45996600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 71, 78, 104, 120, 130, 142, 156, 181, 195, 213, 260, 284, 312, 355, 362, 390, 426, 520, 543, 568, 710, 724, 780, 852, 905, 923, 1065, 1086, 1420, 1448, 1560, 1704, 1810, 1846, 2130, 2172, 2353, 2715, 2769, 2840, 3620, 3692, 4260, 4344, 4615, 4706, 5430, 5538, 7059, 7240, 7384, 8520, 9230, 9412, 10860, 11076, 11765, 12851, 13845, 14118, 18460, 18824, 21720, 22152, 23530, 25702, 27690, 28236, 35295, 36920, 38553, 47060, 51404, 55380, 56472, 64255, 70590, 77106, 94120, 102808, 110760, 128510, 141180, 154212, 167063, 192765, 257020, 282360, 308424, 334126, 385530, 501189, 514040, 668252, 771060, 835315, 1002378, 1336504, 1542120, 1670630, 2004756, 2505945, 3341260, 4009512, 5011890, 6682520, 10023780, 20047560]

約数ペア:

[(1, 20047560), (2, 10023780), (3, 6682520), (4, 5011890), (5, 4009512), (6, 3341260), (8, 2505945), (10, 2004756), (12, 1670630), (13, 1542120), (15, 1336504), (20, 1002378), (24, 835315), (26, 771060), (30, 668252), (39, 514040), (40, 501189), (52, 385530), (60, 334126), (65, 308424), (71, 282360), (78, 257020), (104, 192765), (120, 167063), (130, 154212), (142, 141180), (156, 128510), (181, 110760), (195, 102808), (213, 94120), (260, 77106), (284, 70590), (312, 64255), (355, 56472), (362, 55380), (390, 51404), (426, 47060), (520, 38553), (543, 36920), (568, 35295), (710, 28236), (724, 27690), (780, 25702), (852, 23530), (905, 22152), (923, 21720), (1065, 18824), (1086, 18460), (1420, 14118), (1448, 13845), (1560, 12851), (1704, 11765), (1810, 11076), (1846, 10860), (2130, 9412), (2172, 9230), (2353, 8520), (2715, 7384), (2769, 7240), (2840, 7059), (3620, 5538), (3692, 5430), (4260, 4706), (4344, 4615)]