28726460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6619}}^1$

素因数の和:6666

約数の個数: 48

約数和(自身を含む): 71178240

約数和(自身を除く): 42451780

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, 6619, 13238, 26476, 33095, 46333, 66190, 92666, 132380, 185332, 205189, 231665, 410378, 463330, 820756, 926660, 1025945, 1436323, 2051890, 2872646, 4103780, 5745292, 7181615, 14363230, 28726460]

約数ペア:

[(1, 28726460), (2, 14363230), (4, 7181615), (5, 5745292), (7, 4103780), (10, 2872646), (14, 2051890), (20, 1436323), (28, 1025945), (31, 926660), (35, 820756), (62, 463330), (70, 410378), (124, 231665), (140, 205189), (155, 185332), (217, 132380), (310, 92666), (434, 66190), (620, 46333), (868, 33095), (1085, 26476), (2170, 13238), (4340, 6619)]