78213720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:485

約数の個数: 128

約数和(自身を含む): 255003840

約数和(自身を除く): 176790120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 181, 195, 260, 277, 312, 362, 390, 520, 543, 554, 724, 780, 831, 905, 1086, 1108, 1385, 1448, 1560, 1662, 1810, 2172, 2216, 2353, 2715, 2770, 3324, 3601, 3620, 4155, 4344, 4706, 5430, 5540, 6648, 7059, 7202, 7240, 8310, 9412, 10803, 10860, 11080, 11765, 14118, 14404, 16620, 18005, 18824, 21606, 21720, 23530, 28236, 28808, 33240, 35295, 36010, 43212, 47060, 50137, 54015, 56472, 70590, 72020, 86424, 94120, 100274, 108030, 141180, 144040, 150411, 200548, 216060, 250685, 282360, 300822, 401096, 432120, 501370, 601644, 651781, 752055, 1002740, 1203288, 1303562, 1504110, 1955343, 2005480, 2607124, 3008220, 3258905, 3910686, 5214248, 6016440, 6517810, 7821372, 9776715, 13035620, 15642744, 19553430, 26071240, 39106860, 78213720]

約数ペア:

[(1, 78213720), (2, 39106860), (3, 26071240), (4, 19553430), (5, 15642744), (6, 13035620), (8, 9776715), (10, 7821372), (12, 6517810), (13, 6016440), (15, 5214248), (20, 3910686), (24, 3258905), (26, 3008220), (30, 2607124), (39, 2005480), (40, 1955343), (52, 1504110), (60, 1303562), (65, 1203288), (78, 1002740), (104, 752055), (120, 651781), (130, 601644), (156, 501370), (181, 432120), (195, 401096), (260, 300822), (277, 282360), (312, 250685), (362, 216060), (390, 200548), (520, 150411), (543, 144040), (554, 141180), (724, 108030), (780, 100274), (831, 94120), (905, 86424), (1086, 72020), (1108, 70590), (1385, 56472), (1448, 54015), (1560, 50137), (1662, 47060), (1810, 43212), (2172, 36010), (2216, 35295), (2353, 33240), (2715, 28808), (2770, 28236), (3324, 23530), (3601, 21720), (3620, 21606), (4155, 18824), (4344, 18005), (4706, 16620), (5430, 14404), (5540, 14118), (6648, 11765), (7059, 11080), (7202, 10860), (7240, 10803), (8310, 9412)]