72129280

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1523}}^1$

素因数の和:1581

約数の個数: 72

約数和(自身を含む): 177558192

約数和(自身を除く): 105428912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 592, 640, 740, 1184, 1280, 1480, 1523, 2368, 2960, 3046, 4736, 5920, 6092, 7615, 9472, 11840, 12184, 15230, 23680, 24368, 30460, 47360, 48736, 56351, 60920, 97472, 112702, 121840, 194944, 225404, 243680, 281755, 389888, 450808, 487360, 563510, 901616, 974720, 1127020, 1803232, 1949440, 2254040, 3606464, 4508080, 7212928, 9016160, 14425856, 18032320, 36064640, 72129280]

約数ペア:

[(1, 72129280), (2, 36064640), (4, 18032320), (5, 14425856), (8, 9016160), (10, 7212928), (16, 4508080), (20, 3606464), (32, 2254040), (37, 1949440), (40, 1803232), (64, 1127020), (74, 974720), (80, 901616), (128, 563510), (148, 487360), (160, 450808), (185, 389888), (256, 281755), (296, 243680), (320, 225404), (370, 194944), (592, 121840), (640, 112702), (740, 97472), (1184, 60920), (1280, 56351), (1480, 48736), (1523, 47360), (2368, 30460), (2960, 24368), (3046, 23680), (4736, 15230), (5920, 12184), (6092, 11840), (7615, 9472)]