71396480

素因数分解:

$2^7\times 5^1\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:697

約数の個数: 64

約数和(自身を含む): 171721080

約数和(自身を除く): 100324600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 281, 320, 397, 562, 640, 794, 1124, 1405, 1588, 1985, 2248, 2810, 3176, 3970, 4496, 5620, 6352, 7940, 8992, 11240, 12704, 15880, 17984, 22480, 25408, 31760, 35968, 44960, 50816, 63520, 89920, 111557, 127040, 179840, 223114, 254080, 446228, 557785, 892456, 1115570, 1784912, 2231140, 3569824, 4462280, 7139648, 8924560, 14279296, 17849120, 35698240, 71396480]

約数ペア:

[(1, 71396480), (2, 35698240), (4, 17849120), (5, 14279296), (8, 8924560), (10, 7139648), (16, 4462280), (20, 3569824), (32, 2231140), (40, 1784912), (64, 1115570), (80, 892456), (128, 557785), (160, 446228), (281, 254080), (320, 223114), (397, 179840), (562, 127040), (640, 111557), (794, 89920), (1124, 63520), (1405, 50816), (1588, 44960), (1985, 35968), (2248, 31760), (2810, 25408), (3176, 22480), (3970, 17984), (4496, 15880), (5620, 12704), (6352, 11240), (7940, 8992)]