15894640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10457}}^1$

素因数の和:10489

約数の個数: 40

約数和(自身を含む): 38903760

約数和(自身を除く): 23009120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 10457, 20914, 41828, 52285, 83656, 104570, 167312, 198683, 209140, 397366, 418280, 794732, 836560, 993415, 1589464, 1986830, 3178928, 3973660, 7947320, 15894640]

約数ペア:

[(1, 15894640), (2, 7947320), (4, 3973660), (5, 3178928), (8, 1986830), (10, 1589464), (16, 993415), (19, 836560), (20, 794732), (38, 418280), (40, 397366), (76, 209140), (80, 198683), (95, 167312), (152, 104570), (190, 83656), (304, 52285), (380, 41828), (760, 20914), (1520, 10457)]