28864280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 68040000

約数和(自身を除く): 39175720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 149, 167, 232, 290, 298, 334, 580, 596, 668, 745, 835, 1160, 1192, 1336, 1490, 1670, 2980, 3340, 4321, 4843, 5960, 6680, 8642, 9686, 17284, 19372, 21605, 24215, 24883, 34568, 38744, 43210, 48430, 49766, 86420, 96860, 99532, 124415, 172840, 193720, 199064, 248830, 497660, 721607, 995320, 1443214, 2886428, 3608035, 5772856, 7216070, 14432140, 28864280]

約数ペア:

[(1, 28864280), (2, 14432140), (4, 7216070), (5, 5772856), (8, 3608035), (10, 2886428), (20, 1443214), (29, 995320), (40, 721607), (58, 497660), (116, 248830), (145, 199064), (149, 193720), (167, 172840), (232, 124415), (290, 99532), (298, 96860), (334, 86420), (580, 49766), (596, 48430), (668, 43210), (745, 38744), (835, 34568), (1160, 24883), (1192, 24215), (1336, 21605), (1490, 19372), (1670, 17284), (2980, 9686), (3340, 8642), (4321, 6680), (4843, 5960)]