28393840

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3659}}^1$

素因数の和:3769

約数の個数: 40

約数和(自身を含む): 66714480

約数和(自身を除く): 38320640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3659, 3880, 7318, 7760, 14636, 18295, 29272, 36590, 58544, 73180, 146360, 292720, 354923, 709846, 1419692, 1774615, 2839384, 3549230, 5678768, 7098460, 14196920, 28393840]

約数ペア:

[(1, 28393840), (2, 14196920), (4, 7098460), (5, 5678768), (8, 3549230), (10, 2839384), (16, 1774615), (20, 1419692), (40, 709846), (80, 354923), (97, 292720), (194, 146360), (388, 73180), (485, 58544), (776, 36590), (970, 29272), (1552, 18295), (1940, 14636), (3659, 7760), (3880, 7318)]