20120853904

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20615629}}^1$

素因数の和:20615698

約数の個数: 20

約数和(自身を含む): 39623240860

約数和(自身を除く): 19502386956

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20615629, 41231258, 82462516, 164925032, 329850064, 1257553369, 2515106738, 5030213476, 10060426952, 20120853904]

約数ペア:

[(1, 20120853904), (2, 10060426952), (4, 5030213476), (8, 2515106738), (16, 1257553369), (61, 329850064), (122, 164925032), (244, 82462516), (488, 41231258), (976, 20615629)]