19973230

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 36961920

約数和(自身を除く): 16988690

約数列:

[1, 2, 5, 10, 61, 122, 137, 239, 274, 305, 478, 610, 685, 1195, 1370, 2390, 8357, 14579, 16714, 29158, 32743, 41785, 65486, 72895, 83570, 145790, 163715, 327430, 1997323, 3994646, 9986615, 19973230]

約数ペア:

[(1, 19973230), (2, 9986615), (5, 3994646), (10, 1997323), (61, 327430), (122, 163715), (137, 145790), (239, 83570), (274, 72895), (305, 65486), (478, 41785), (610, 32743), (685, 29158), (1195, 16714), (1370, 14579), (2390, 8357)]