28561540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6581}}^1$

素因数の和:6628

約数の個数: 48

約数和(自身を含む): 70769664

約数和(自身を除く): 42208124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 6581, 13162, 26324, 32905, 46067, 65810, 92134, 131620, 184268, 204011, 230335, 408022, 460670, 816044, 921340, 1020055, 1428077, 2040110, 2856154, 4080220, 5712308, 7140385, 14280770, 28561540]

約数ペア:

[(1, 28561540), (2, 14280770), (4, 7140385), (5, 5712308), (7, 4080220), (10, 2856154), (14, 2040110), (20, 1428077), (28, 1020055), (31, 921340), (35, 816044), (62, 460670), (70, 408022), (124, 230335), (140, 204011), (155, 184268), (217, 131620), (310, 92134), (434, 65810), (620, 46067), (868, 32905), (1085, 26324), (2170, 13162), (4340, 6581)]