28913560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55603}}^1$

素因数の和:55627

約数の個数: 32

約数和(自身を含む): 70061040

約数和(自身を除く): 41147480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55603, 111206, 222412, 278015, 444824, 556030, 722839, 1112060, 1445678, 2224120, 2891356, 3614195, 5782712, 7228390, 14456780, 28913560]

約数ペア:

[(1, 28913560), (2, 14456780), (4, 7228390), (5, 5782712), (8, 3614195), (10, 2891356), (13, 2224120), (20, 1445678), (26, 1112060), (40, 722839), (52, 556030), (65, 444824), (104, 278015), (130, 222412), (260, 111206), (520, 55603)]