1557440

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:205

約数の個数: 56

約数和(自身を含む): 3852672

約数和(自身を除く): 2295232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 157, 160, 248, 310, 314, 320, 496, 620, 628, 785, 992, 1240, 1256, 1570, 1984, 2480, 2512, 3140, 4867, 4960, 5024, 6280, 9734, 9920, 10048, 12560, 19468, 24335, 25120, 38936, 48670, 50240, 77872, 97340, 155744, 194680, 311488, 389360, 778720, 1557440]

約数ペア:

[(1, 1557440), (2, 778720), (4, 389360), (5, 311488), (8, 194680), (10, 155744), (16, 97340), (20, 77872), (31, 50240), (32, 48670), (40, 38936), (62, 25120), (64, 24335), (80, 19468), (124, 12560), (155, 10048), (157, 9920), (160, 9734), (248, 6280), (310, 5024), (314, 4960), (320, 4867), (496, 3140), (620, 2512), (628, 2480), (785, 1984), (992, 1570), (1240, 1256)]