291211120

素因数分解:

$2^4\times 5^1\times {\mathrm{829}}^1\times {\mathrm{4391}}^1$

素因数の和:5233

約数の個数: 40

約数和(自身を含む): 678036960

約数和(自身を除く): 386825840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 829, 1658, 3316, 4145, 4391, 6632, 8290, 8782, 13264, 16580, 17564, 21955, 33160, 35128, 43910, 66320, 70256, 87820, 175640, 351280, 3640139, 7280278, 14560556, 18200695, 29121112, 36401390, 58242224, 72802780, 145605560, 291211120]

約数ペア:

[(1, 291211120), (2, 145605560), (4, 72802780), (5, 58242224), (8, 36401390), (10, 29121112), (16, 18200695), (20, 14560556), (40, 7280278), (80, 3640139), (829, 351280), (1658, 175640), (3316, 87820), (4145, 70256), (4391, 66320), (6632, 43910), (8290, 35128), (8782, 33160), (13264, 21955), (16580, 17564)]