20180743120

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1547603}}^1$

素因数の和:1547779

約数の個数: 40

約数和(自身を含む): 47208112416

約数和(自身を除く): 27027369296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 1547603, 3095206, 6190412, 7738015, 12380824, 15476030, 24761648, 30952060, 61904120, 123808240, 252259289, 504518578, 1009037156, 1261296445, 2018074312, 2522592890, 4036148624, 5045185780, 10090371560, 20180743120]

約数ペア:

[(1, 20180743120), (2, 10090371560), (4, 5045185780), (5, 4036148624), (8, 2522592890), (10, 2018074312), (16, 1261296445), (20, 1009037156), (40, 504518578), (80, 252259289), (163, 123808240), (326, 61904120), (652, 30952060), (815, 24761648), (1304, 15476030), (1630, 12380824), (2608, 7738015), (3260, 6190412), (6520, 3095206), (13040, 1547603)]