889280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{397}}^1$

素因数の和:421

約数の個数: 56

約数和(自身を含む): 2426208

約数和(自身を除く): 1536928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 397, 448, 560, 794, 1120, 1588, 1985, 2240, 2779, 3176, 3970, 5558, 6352, 7940, 11116, 12704, 13895, 15880, 22232, 25408, 27790, 31760, 44464, 55580, 63520, 88928, 111160, 127040, 177856, 222320, 444640, 889280]

約数ペア:

[(1, 889280), (2, 444640), (4, 222320), (5, 177856), (7, 127040), (8, 111160), (10, 88928), (14, 63520), (16, 55580), (20, 44464), (28, 31760), (32, 27790), (35, 25408), (40, 22232), (56, 15880), (64, 13895), (70, 12704), (80, 11116), (112, 7940), (140, 6352), (160, 5558), (224, 3970), (280, 3176), (320, 2779), (397, 2240), (448, 1985), (560, 1588), (794, 1120)]