291285290

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1\times {\mathrm{1229}}^1$

素因数の和:1546

約数の個数: 32

約数和(自身を含む): 531625680

約数和(自身を除く): 240340390

約数列:

[1, 2, 5, 10, 137, 173, 274, 346, 685, 865, 1229, 1370, 1730, 2458, 6145, 12290, 23701, 47402, 118505, 168373, 212617, 237010, 336746, 425234, 841865, 1063085, 1683730, 2126170, 29128529, 58257058, 145642645, 291285290]

約数ペア:

[(1, 291285290), (2, 145642645), (5, 58257058), (10, 29128529), (137, 2126170), (173, 1683730), (274, 1063085), (346, 841865), (685, 425234), (865, 336746), (1229, 237010), (1370, 212617), (1730, 168373), (2458, 118505), (6145, 47402), (12290, 23701)]