31728915

素因数分解:

$3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:673

約数の個数: 40

約数和(自身を含む): 57354000

約数和(自身を除く): 25625085

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 157, 405, 471, 499, 785, 1413, 1497, 2355, 2495, 4239, 4491, 7065, 7485, 12717, 13473, 21195, 22455, 40419, 63585, 67365, 78343, 202095, 235029, 391715, 705087, 1175145, 2115261, 3525435, 6345783, 10576305, 31728915]

約数ペア:

[(1, 31728915), (3, 10576305), (5, 6345783), (9, 3525435), (15, 2115261), (27, 1175145), (45, 705087), (81, 391715), (135, 235029), (157, 202095), (405, 78343), (471, 67365), (499, 63585), (785, 40419), (1413, 22455), (1497, 21195), (2355, 13473), (2495, 12717), (4239, 7485), (4491, 7065)]