404655980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{284969}}^1$

素因数の和:285049

約数の個数: 24

約数和(自身を含む): 861749280

約数和(自身を除く): 457093300

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 284969, 569938, 1139876, 1424845, 2849690, 5699380, 20232799, 40465598, 80931196, 101163995, 202327990, 404655980]

約数ペア:

[(1, 404655980), (2, 202327990), (4, 101163995), (5, 80931196), (10, 40465598), (20, 20232799), (71, 5699380), (142, 2849690), (284, 1424845), (355, 1139876), (710, 569938), (1420, 284969)]