231568720

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 550143360

約数和(自身を除く): 318574640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 157, 179, 206, 314, 358, 412, 515, 628, 716, 785, 824, 895, 1030, 1256, 1432, 1570, 1648, 1790, 2060, 2512, 2864, 3140, 3580, 4120, 6280, 7160, 8240, 12560, 14320, 16171, 18437, 28103, 32342, 36874, 56206, 64684, 73748, 80855, 92185, 112412, 129368, 140515, 147496, 161710, 184370, 224824, 258736, 281030, 294992, 323420, 368740, 449648, 562060, 646840, 737480, 1124120, 1293680, 1474960, 2248240, 2894609, 5789218, 11578436, 14473045, 23156872, 28946090, 46313744, 57892180, 115784360, 231568720]

約数ペア:

[(1, 231568720), (2, 115784360), (4, 57892180), (5, 46313744), (8, 28946090), (10, 23156872), (16, 14473045), (20, 11578436), (40, 5789218), (80, 2894609), (103, 2248240), (157, 1474960), (179, 1293680), (206, 1124120), (314, 737480), (358, 646840), (412, 562060), (515, 449648), (628, 368740), (716, 323420), (785, 294992), (824, 281030), (895, 258736), (1030, 224824), (1256, 184370), (1432, 161710), (1570, 147496), (1648, 140515), (1790, 129368), (2060, 112412), (2512, 92185), (2864, 80855), (3140, 73748), (3580, 64684), (4120, 56206), (6280, 36874), (7160, 32342), (8240, 28103), (12560, 18437), (14320, 16171)]