28653560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55103}}^1$

素因数の和:55127

約数の個数: 32

約数和(自身を含む): 69431040

約数和(自身を除く): 40777480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55103, 110206, 220412, 275515, 440824, 551030, 716339, 1102060, 1432678, 2204120, 2865356, 3581695, 5730712, 7163390, 14326780, 28653560]

約数ペア:

[(1, 28653560), (2, 14326780), (4, 7163390), (5, 5730712), (8, 3581695), (10, 2865356), (13, 2204120), (20, 1432678), (26, 1102060), (40, 716339), (52, 551030), (65, 440824), (104, 275515), (130, 220412), (260, 110206), (520, 55103)]