4390820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 10698240

約数和(自身を除く): 6307420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 397, 553, 790, 794, 1106, 1580, 1588, 1985, 2212, 2765, 2779, 3970, 5530, 5558, 7940, 11060, 11116, 13895, 27790, 31363, 55580, 62726, 125452, 156815, 219541, 313630, 439082, 627260, 878164, 1097705, 2195410, 4390820]

約数ペア:

[(1, 4390820), (2, 2195410), (4, 1097705), (5, 878164), (7, 627260), (10, 439082), (14, 313630), (20, 219541), (28, 156815), (35, 125452), (70, 62726), (79, 55580), (140, 31363), (158, 27790), (316, 13895), (395, 11116), (397, 11060), (553, 7940), (790, 5558), (794, 5530), (1106, 3970), (1580, 2779), (1588, 2765), (1985, 2212)]