1292057420

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1\times {\mathrm{887}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 2738570688

約数和(自身を除く): 1446513268

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 421, 692, 842, 865, 887, 1684, 1730, 1774, 2105, 3460, 3548, 4210, 4435, 8420, 8870, 17740, 72833, 145666, 153451, 291332, 306902, 364165, 373427, 613804, 728330, 746854, 767255, 1456660, 1493708, 1534510, 1867135, 3069020, 3734270, 7468540, 64602871, 129205742, 258411484, 323014355, 646028710, 1292057420]

約数ペア:

[(1, 1292057420), (2, 646028710), (4, 323014355), (5, 258411484), (10, 129205742), (20, 64602871), (173, 7468540), (346, 3734270), (421, 3069020), (692, 1867135), (842, 1534510), (865, 1493708), (887, 1456660), (1684, 767255), (1730, 746854), (1774, 728330), (2105, 613804), (3460, 373427), (3548, 364165), (4210, 306902), (4435, 291332), (8420, 153451), (8870, 145666), (17740, 72833)]