91428820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{1973}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 220203648

約数和(自身を除く): 128774828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 662, 1324, 1655, 1973, 2317, 3310, 3946, 4634, 6620, 7892, 9268, 9865, 11585, 13811, 19730, 23170, 27622, 39460, 46340, 55244, 69055, 138110, 276220, 653063, 1306126, 2612252, 3265315, 4571441, 6530630, 9142882, 13061260, 18285764, 22857205, 45714410, 91428820]

約数ペア:

[(1, 91428820), (2, 45714410), (4, 22857205), (5, 18285764), (7, 13061260), (10, 9142882), (14, 6530630), (20, 4571441), (28, 3265315), (35, 2612252), (70, 1306126), (140, 653063), (331, 276220), (662, 138110), (1324, 69055), (1655, 55244), (1973, 46340), (2317, 39460), (3310, 27622), (3946, 23170), (4634, 19730), (6620, 13811), (7892, 11585), (9268, 9865)]