258411580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{7723}}^1$

素因数の和:7978

約数の個数: 48

約数和(自身を含む): 622863360

約数和(自身を除く): 364451780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 956, 1195, 1673, 2390, 3346, 4780, 6692, 7723, 8365, 15446, 16730, 30892, 33460, 38615, 54061, 77230, 108122, 154460, 216244, 270305, 540610, 1081220, 1845797, 3691594, 7383188, 9228985, 12920579, 18457970, 25841158, 36915940, 51682316, 64602895, 129205790, 258411580]

約数ペア:

[(1, 258411580), (2, 129205790), (4, 64602895), (5, 51682316), (7, 36915940), (10, 25841158), (14, 18457970), (20, 12920579), (28, 9228985), (35, 7383188), (70, 3691594), (140, 1845797), (239, 1081220), (478, 540610), (956, 270305), (1195, 216244), (1673, 154460), (2390, 108122), (3346, 77230), (4780, 54061), (6692, 38615), (7723, 33460), (8365, 30892), (15446, 16730)]