17868654820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28820411}}^1$

素因数の和:28820451

約数の個数: 24

約数和(自身を含む): 38734633728

約数和(自身を除く): 20865978908

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 28820411, 57640822, 115281644, 144102055, 288204110, 576408220, 893432741, 1786865482, 3573730964, 4467163705, 8934327410, 17868654820]

約数ペア:

[(1, 17868654820), (2, 8934327410), (4, 4467163705), (5, 3573730964), (10, 1786865482), (20, 893432741), (31, 576408220), (62, 288204110), (124, 144102055), (155, 115281644), (310, 57640822), (620, 28820411)]