55726280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{181}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 129729600

約数和(自身を除く): 74003320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 179, 181, 215, 344, 358, 362, 430, 716, 724, 860, 895, 905, 1432, 1448, 1720, 1790, 1810, 3580, 3620, 7160, 7240, 7697, 7783, 15394, 15566, 30788, 31132, 32399, 38485, 38915, 61576, 62264, 64798, 76970, 77830, 129596, 153940, 155660, 161995, 259192, 307880, 311320, 323990, 647980, 1295960, 1393157, 2786314, 5572628, 6965785, 11145256, 13931570, 27863140, 55726280]

約数ペア:

[(1, 55726280), (2, 27863140), (4, 13931570), (5, 11145256), (8, 6965785), (10, 5572628), (20, 2786314), (40, 1393157), (43, 1295960), (86, 647980), (172, 323990), (179, 311320), (181, 307880), (215, 259192), (344, 161995), (358, 155660), (362, 153940), (430, 129596), (716, 77830), (724, 76970), (860, 64798), (895, 62264), (905, 61576), (1432, 38915), (1448, 38485), (1720, 32399), (1790, 31132), (1810, 30788), (3580, 15566), (3620, 15394), (7160, 7783), (7240, 7697)]