81654910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^2\times {\mathrm{107}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 159458544

約数和(自身を除く): 77803634

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 107, 134, 170, 214, 335, 535, 670, 1070, 1139, 1819, 2278, 3638, 4489, 5695, 7169, 8978, 9095, 11390, 14338, 18190, 22445, 35845, 44890, 71690, 76313, 121873, 152626, 243746, 381565, 480323, 609365, 763130, 960646, 1218730, 2401615, 4803230, 8165491, 16330982, 40827455, 81654910]

約数ペア:

[(1, 81654910), (2, 40827455), (5, 16330982), (10, 8165491), (17, 4803230), (34, 2401615), (67, 1218730), (85, 960646), (107, 763130), (134, 609365), (170, 480323), (214, 381565), (335, 243746), (535, 152626), (670, 121873), (1070, 76313), (1139, 71690), (1819, 44890), (2278, 35845), (3638, 22445), (4489, 18190), (5695, 14338), (7169, 11390), (8978, 9095)]