12221560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1237}}^1$

素因数の和:1280

約数の個数: 64

約数和(自身を含む): 31197600

約数和(自身を除く): 18976040

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1237, 1976, 2470, 2474, 4940, 4948, 6185, 9880, 9896, 12370, 16081, 23503, 24740, 32162, 47006, 49480, 64324, 80405, 94012, 117515, 128648, 160810, 188024, 235030, 305539, 321620, 470060, 611078, 643240, 940120, 1222156, 1527695, 2444312, 3055390, 6110780, 12221560]

約数ペア:

[(1, 12221560), (2, 6110780), (4, 3055390), (5, 2444312), (8, 1527695), (10, 1222156), (13, 940120), (19, 643240), (20, 611078), (26, 470060), (38, 321620), (40, 305539), (52, 235030), (65, 188024), (76, 160810), (95, 128648), (104, 117515), (130, 94012), (152, 80405), (190, 64324), (247, 49480), (260, 47006), (380, 32162), (494, 24740), (520, 23503), (760, 16081), (988, 12370), (1235, 9896), (1237, 9880), (1976, 6185), (2470, 4948), (2474, 4940)]