80716280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 189540000

約数和(自身を除く): 108823720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 149, 232, 290, 298, 467, 580, 596, 745, 934, 1160, 1192, 1490, 1868, 2335, 2980, 3736, 4321, 4670, 5960, 8642, 9340, 13543, 17284, 18680, 21605, 27086, 34568, 43210, 54172, 67715, 69583, 86420, 108344, 135430, 139166, 172840, 270860, 278332, 347915, 541720, 556664, 695830, 1391660, 2017907, 2783320, 4035814, 8071628, 10089535, 16143256, 20179070, 40358140, 80716280]

約数ペア:

[(1, 80716280), (2, 40358140), (4, 20179070), (5, 16143256), (8, 10089535), (10, 8071628), (20, 4035814), (29, 2783320), (40, 2017907), (58, 1391660), (116, 695830), (145, 556664), (149, 541720), (232, 347915), (290, 278332), (298, 270860), (467, 172840), (580, 139166), (596, 135430), (745, 108344), (934, 86420), (1160, 69583), (1192, 67715), (1490, 54172), (1868, 43210), (2335, 34568), (2980, 27086), (3736, 21605), (4321, 18680), (4670, 17284), (5960, 13543), (8642, 9340)]