81563040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4357}}^1$

素因数の和:4391

約数の個数: 144

約数和(自身を含む): 299812968

約数和(自身を除く): 218249928

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4357, 4680, 6240, 8714, 9360, 13071, 17428, 18720, 21785, 26142, 34856, 39213, 43570, 52284, 56641, 65355, 69712, 78426, 87140, 104568, 113282, 130710, 139424, 156852, 169923, 174280, 196065, 209136, 226564, 261420, 283205, 313704, 339846, 348560, 392130, 418272, 453128, 509769, 522840, 566410, 627408, 679692, 697120, 784260, 849615, 906256, 1019538, 1045680, 1132820, 1254816, 1359384, 1568520, 1699230, 1812512, 2039076, 2091360, 2265640, 2548845, 2718768, 3137040, 3398460, 4078152, 4531280, 5097690, 5437536, 6274080, 6796920, 8156304, 9062560, 10195380, 13593840, 16312608, 20390760, 27187680, 40781520, 81563040]

約数ペア:

[(1, 81563040), (2, 40781520), (3, 27187680), (4, 20390760), (5, 16312608), (6, 13593840), (8, 10195380), (9, 9062560), (10, 8156304), (12, 6796920), (13, 6274080), (15, 5437536), (16, 5097690), (18, 4531280), (20, 4078152), (24, 3398460), (26, 3137040), (30, 2718768), (32, 2548845), (36, 2265640), (39, 2091360), (40, 2039076), (45, 1812512), (48, 1699230), (52, 1568520), (60, 1359384), (65, 1254816), (72, 1132820), (78, 1045680), (80, 1019538), (90, 906256), (96, 849615), (104, 784260), (117, 697120), (120, 679692), (130, 627408), (144, 566410), (156, 522840), (160, 509769), (180, 453128), (195, 418272), (208, 392130), (234, 348560), (240, 339846), (260, 313704), (288, 283205), (312, 261420), (360, 226564), (390, 209136), (416, 196065), (468, 174280), (480, 169923), (520, 156852), (585, 139424), (624, 130710), (720, 113282), (780, 104568), (936, 87140), (1040, 78426), (1170, 69712), (1248, 65355), (1440, 56641), (1560, 52284), (1872, 43570), (2080, 39213), (2340, 34856), (3120, 26142), (3744, 21785), (4357, 18720), (4680, 17428), (6240, 13071), (8714, 9360)]