405280

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 1020600

約数和(自身を除く): 615320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 149, 160, 170, 272, 298, 340, 544, 596, 680, 745, 1192, 1360, 1490, 2384, 2533, 2720, 2980, 4768, 5066, 5960, 10132, 11920, 12665, 20264, 23840, 25330, 40528, 50660, 81056, 101320, 202640, 405280]

約数ペア:

[(1, 405280), (2, 202640), (4, 101320), (5, 81056), (8, 50660), (10, 40528), (16, 25330), (17, 23840), (20, 20264), (32, 12665), (34, 11920), (40, 10132), (68, 5960), (80, 5066), (85, 4768), (136, 2980), (149, 2720), (160, 2533), (170, 2384), (272, 1490), (298, 1360), (340, 1192), (544, 745), (596, 680)]