1520408720

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{240571}}^1$

素因数の和:240663

約数の個数: 40

約数和(自身を含む): 3579711360

約数和(自身を除く): 2059302640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 240571, 481142, 962284, 1202855, 1924568, 2405710, 3849136, 4811420, 9622840, 19005109, 19245680, 38010218, 76020436, 95025545, 152040872, 190051090, 304081744, 380102180, 760204360, 1520408720]

約数ペア:

[(1, 1520408720), (2, 760204360), (4, 380102180), (5, 304081744), (8, 190051090), (10, 152040872), (16, 95025545), (20, 76020436), (40, 38010218), (79, 19245680), (80, 19005109), (158, 9622840), (316, 4811420), (395, 3849136), (632, 2405710), (790, 1924568), (1264, 1202855), (1580, 962284), (3160, 481142), (6320, 240571)]