838640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{953}}^1$

素因数の和:977

約数の個数: 40

約数和(自身を含む): 2129328

約数和(自身を除く): 1290688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 953, 1906, 3812, 4765, 7624, 9530, 10483, 15248, 19060, 20966, 38120, 41932, 52415, 76240, 83864, 104830, 167728, 209660, 419320, 838640]

約数ペア:

[(1, 838640), (2, 419320), (4, 209660), (5, 167728), (8, 104830), (10, 83864), (11, 76240), (16, 52415), (20, 41932), (22, 38120), (40, 20966), (44, 19060), (55, 15248), (80, 10483), (88, 9530), (110, 7624), (176, 4765), (220, 3812), (440, 1906), (880, 953)]