15915920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:352

約数の個数: 80

約数和(自身を含む): 40146240

約数和(自身を除く): 24230320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 37, 38, 40, 74, 76, 80, 95, 148, 152, 185, 190, 283, 296, 304, 370, 380, 566, 592, 703, 740, 760, 1132, 1406, 1415, 1480, 1520, 2264, 2812, 2830, 2960, 3515, 4528, 5377, 5624, 5660, 7030, 10471, 10754, 11248, 11320, 14060, 20942, 21508, 22640, 26885, 28120, 41884, 43016, 52355, 53770, 56240, 83768, 86032, 104710, 107540, 167536, 198949, 209420, 215080, 397898, 418840, 430160, 795796, 837680, 994745, 1591592, 1989490, 3183184, 3978980, 7957960, 15915920]

約数ペア:

[(1, 15915920), (2, 7957960), (4, 3978980), (5, 3183184), (8, 1989490), (10, 1591592), (16, 994745), (19, 837680), (20, 795796), (37, 430160), (38, 418840), (40, 397898), (74, 215080), (76, 209420), (80, 198949), (95, 167536), (148, 107540), (152, 104710), (185, 86032), (190, 83768), (283, 56240), (296, 53770), (304, 52355), (370, 43016), (380, 41884), (566, 28120), (592, 26885), (703, 22640), (740, 21508), (760, 20942), (1132, 14060), (1406, 11320), (1415, 11248), (1480, 10754), (1520, 10471), (2264, 7030), (2812, 5660), (2830, 5624), (2960, 5377), (3515, 4528)]