1222760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 3438720

約数和(自身を除く): 2215960

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 397, 440, 616, 770, 794, 1540, 1588, 1985, 2779, 3080, 3176, 3970, 4367, 5558, 7940, 8734, 11116, 13895, 15880, 17468, 21835, 22232, 27790, 30569, 34936, 43670, 55580, 61138, 87340, 111160, 122276, 152845, 174680, 244552, 305690, 611380, 1222760]

約数ペア:

[(1, 1222760), (2, 611380), (4, 305690), (5, 244552), (7, 174680), (8, 152845), (10, 122276), (11, 111160), (14, 87340), (20, 61138), (22, 55580), (28, 43670), (35, 34936), (40, 30569), (44, 27790), (55, 22232), (56, 21835), (70, 17468), (77, 15880), (88, 13895), (110, 11116), (140, 8734), (154, 7940), (220, 5558), (280, 4367), (308, 3970), (385, 3176), (397, 3080), (440, 2779), (616, 1985), (770, 1588), (794, 1540)]