828940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 2064384

約数和(自身を除く): 1235444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 191, 217, 310, 382, 434, 620, 764, 868, 955, 1085, 1337, 1910, 2170, 2674, 3820, 4340, 5348, 5921, 6685, 11842, 13370, 23684, 26740, 29605, 41447, 59210, 82894, 118420, 165788, 207235, 414470, 828940]

約数ペア:

[(1, 828940), (2, 414470), (4, 207235), (5, 165788), (7, 118420), (10, 82894), (14, 59210), (20, 41447), (28, 29605), (31, 26740), (35, 23684), (62, 13370), (70, 11842), (124, 6685), (140, 5921), (155, 5348), (191, 4340), (217, 3820), (310, 2674), (382, 2170), (434, 1910), (620, 1337), (764, 1085), (868, 955)]