211320140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{148817}}^1$

素因数の和:148897

約数の個数: 24

約数和(自身を含む): 450025632

約数和(自身を除く): 238705492

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 148817, 297634, 595268, 744085, 1488170, 2976340, 10566007, 21132014, 42264028, 52830035, 105660070, 211320140]

約数ペア:

[(1, 211320140), (2, 105660070), (4, 52830035), (5, 42264028), (10, 21132014), (20, 10566007), (71, 2976340), (142, 1488170), (284, 744085), (355, 595268), (710, 297634), (1420, 148817)]