31357560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20101}}^1$

素因数の和:20128

約数の個数: 64

約数和(自身を含む): 101314080

約数和(自身を除く): 69956520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20101, 40202, 60303, 80404, 100505, 120606, 160808, 201010, 241212, 261313, 301515, 402020, 482424, 522626, 603030, 783939, 804040, 1045252, 1206060, 1306565, 1567878, 2090504, 2412120, 2613130, 3135756, 3919695, 5226260, 6271512, 7839390, 10452520, 15678780, 31357560]

約数ペア:

[(1, 31357560), (2, 15678780), (3, 10452520), (4, 7839390), (5, 6271512), (6, 5226260), (8, 3919695), (10, 3135756), (12, 2613130), (13, 2412120), (15, 2090504), (20, 1567878), (24, 1306565), (26, 1206060), (30, 1045252), (39, 804040), (40, 783939), (52, 603030), (60, 522626), (65, 482424), (78, 402020), (104, 301515), (120, 261313), (130, 241212), (156, 201010), (195, 160808), (260, 120606), (312, 100505), (390, 80404), (520, 60303), (780, 40202), (1560, 20101)]