15918880

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2689}}^1$

素因数の和:2741

約数の個数: 48

約数和(自身を含む): 38639160

約数和(自身を除く): 22720280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2689, 2960, 5378, 5920, 10756, 13445, 21512, 26890, 43024, 53780, 86048, 99493, 107560, 198986, 215120, 397972, 430240, 497465, 795944, 994930, 1591888, 1989860, 3183776, 3979720, 7959440, 15918880]

約数ペア:

[(1, 15918880), (2, 7959440), (4, 3979720), (5, 3183776), (8, 1989860), (10, 1591888), (16, 994930), (20, 795944), (32, 497465), (37, 430240), (40, 397972), (74, 215120), (80, 198986), (148, 107560), (160, 99493), (185, 86048), (296, 53780), (370, 43024), (592, 26890), (740, 21512), (1184, 13445), (1480, 10756), (2689, 5920), (2960, 5378)]