81227844

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 213403008

約数和(自身を除く): 132175164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 61, 94, 122, 141, 183, 188, 244, 282, 366, 423, 549, 564, 732, 787, 846, 1098, 1574, 1692, 2196, 2361, 2867, 3148, 4722, 5734, 7083, 8601, 9444, 11468, 14166, 17202, 25803, 28332, 34404, 36989, 48007, 51606, 73978, 96014, 103212, 110967, 144021, 147956, 192028, 221934, 288042, 332901, 432063, 443868, 576084, 665802, 864126, 1331604, 1728252, 2256329, 4512658, 6768987, 9025316, 13537974, 20306961, 27075948, 40613922, 81227844]

約数ペア:

[(1, 81227844), (2, 40613922), (3, 27075948), (4, 20306961), (6, 13537974), (9, 9025316), (12, 6768987), (18, 4512658), (36, 2256329), (47, 1728252), (61, 1331604), (94, 864126), (122, 665802), (141, 576084), (183, 443868), (188, 432063), (244, 332901), (282, 288042), (366, 221934), (423, 192028), (549, 147956), (564, 144021), (732, 110967), (787, 103212), (846, 96014), (1098, 73978), (1574, 51606), (1692, 48007), (2196, 36989), (2361, 34404), (2867, 28332), (3148, 25803), (4722, 17202), (5734, 14166), (7083, 11468), (8601, 9444)]