31359640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4639}}^1$

素因数の和:4676

約数の個数: 48

約数和(自身を含む): 76420800

約数和(自身を除く): 45061160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4639, 6760, 9278, 18556, 23195, 37112, 46390, 60307, 92780, 120614, 185560, 241228, 301535, 482456, 603070, 783991, 1206140, 1567982, 2412280, 3135964, 3919955, 6271928, 7839910, 15679820, 31359640]

約数ペア:

[(1, 31359640), (2, 15679820), (4, 7839910), (5, 6271928), (8, 3919955), (10, 3135964), (13, 2412280), (20, 1567982), (26, 1206140), (40, 783991), (52, 603070), (65, 482456), (104, 301535), (130, 241228), (169, 185560), (260, 120614), (338, 92780), (520, 60307), (676, 46390), (845, 37112), (1352, 23195), (1690, 18556), (3380, 9278), (4639, 6760)]