397997992

素因数分解:

$2^3\times 7^3\times {\mathrm{145043}}^1$

素因数の和:145070

約数の個数: 32

約数和(自身を含む): 870264000

約数和(自身を除く): 472266008

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 145043, 290086, 580172, 1015301, 1160344, 2030602, 4061204, 7107107, 8122408, 14214214, 28428428, 49749749, 56856856, 99499498, 198998996, 397997992]

約数ペア:

[(1, 397997992), (2, 198998996), (4, 99499498), (7, 56856856), (8, 49749749), (14, 28428428), (28, 14214214), (49, 8122408), (56, 7107107), (98, 4061204), (196, 2030602), (343, 1160344), (392, 1015301), (686, 580172), (1372, 290086), (2744, 145043)]