40991920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16529}}^1$

素因数の和:16573

約数の個数: 40

約数和(自身を含む): 98386560

約数和(自身を除く): 57394640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 16529, 33058, 66116, 82645, 132232, 165290, 264464, 330580, 512399, 661160, 1024798, 1322320, 2049596, 2561995, 4099192, 5123990, 8198384, 10247980, 20495960, 40991920]

約数ペア:

[(1, 40991920), (2, 20495960), (4, 10247980), (5, 8198384), (8, 5123990), (10, 4099192), (16, 2561995), (20, 2049596), (31, 1322320), (40, 1024798), (62, 661160), (80, 512399), (124, 330580), (155, 264464), (248, 165290), (310, 132232), (496, 82645), (620, 66116), (1240, 33058), (2480, 16529)]