1293390820

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{140281}}^1$

素因数の和:140751

約数の個数: 24

約数和(自身を含む): 2722031928

約数和(自身を除く): 1428641108

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2305, 4610, 9220, 140281, 280562, 561124, 701405, 1402810, 2805620, 64669541, 129339082, 258678164, 323347705, 646695410, 1293390820]

約数ペア:

[(1, 1293390820), (2, 646695410), (4, 323347705), (5, 258678164), (10, 129339082), (20, 64669541), (461, 2805620), (922, 1402810), (1844, 701405), (2305, 561124), (4610, 280562), (9220, 140281)]