81964778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{557}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 147204864

約数和(自身を除く): 65240086

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 457, 557, 914, 1114, 3199, 3899, 6398, 7798, 10511, 12811, 21022, 25622, 73577, 89677, 147154, 179354, 254549, 509098, 1781843, 3563686, 5854627, 11709254, 40982389, 81964778]

約数ペア:

[(1, 81964778), (2, 40982389), (7, 11709254), (14, 5854627), (23, 3563686), (46, 1781843), (161, 509098), (322, 254549), (457, 179354), (557, 147154), (914, 89677), (1114, 73577), (3199, 25622), (3899, 21022), (6398, 12811), (7798, 10511)]