15931120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:302

約数の個数: 80

約数和(自身を含む): 39997440

約数和(自身を除く): 24066320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 223, 235, 304, 376, 380, 446, 470, 752, 760, 892, 893, 940, 1115, 1520, 1784, 1786, 1880, 2230, 3568, 3572, 3760, 4237, 4460, 4465, 7144, 8474, 8920, 8930, 10481, 14288, 16948, 17840, 17860, 20962, 21185, 33896, 35720, 41924, 42370, 52405, 67792, 71440, 83848, 84740, 104810, 167696, 169480, 199139, 209620, 338960, 398278, 419240, 796556, 838480, 995695, 1593112, 1991390, 3186224, 3982780, 7965560, 15931120]

約数ペア:

[(1, 15931120), (2, 7965560), (4, 3982780), (5, 3186224), (8, 1991390), (10, 1593112), (16, 995695), (19, 838480), (20, 796556), (38, 419240), (40, 398278), (47, 338960), (76, 209620), (80, 199139), (94, 169480), (95, 167696), (152, 104810), (188, 84740), (190, 83848), (223, 71440), (235, 67792), (304, 52405), (376, 42370), (380, 41924), (446, 35720), (470, 33896), (752, 21185), (760, 20962), (892, 17860), (893, 17840), (940, 16948), (1115, 14288), (1520, 10481), (1784, 8930), (1786, 8920), (1880, 8474), (2230, 7144), (3568, 4465), (3572, 4460), (3760, 4237)]