4003720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 10483200

約数和(自身を除く): 6479480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 181, 280, 316, 362, 395, 553, 632, 724, 790, 905, 1106, 1267, 1448, 1580, 1810, 2212, 2534, 2765, 3160, 3620, 4424, 5068, 5530, 6335, 7240, 10136, 11060, 12670, 14299, 22120, 25340, 28598, 50680, 57196, 71495, 100093, 114392, 142990, 200186, 285980, 400372, 500465, 571960, 800744, 1000930, 2001860, 4003720]

約数ペア:

[(1, 4003720), (2, 2001860), (4, 1000930), (5, 800744), (7, 571960), (8, 500465), (10, 400372), (14, 285980), (20, 200186), (28, 142990), (35, 114392), (40, 100093), (56, 71495), (70, 57196), (79, 50680), (140, 28598), (158, 25340), (181, 22120), (280, 14299), (316, 12670), (362, 11060), (395, 10136), (553, 7240), (632, 6335), (724, 5530), (790, 5068), (905, 4424), (1106, 3620), (1267, 3160), (1448, 2765), (1580, 2534), (1810, 2212)]