1115244920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:1116

約数の個数: 64

約数和(自身を含む): 2540039040

約数和(自身を除く): 1424794120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 331, 524, 643, 655, 662, 1048, 1286, 1310, 1324, 1655, 2572, 2620, 2648, 3215, 3310, 5144, 5240, 6430, 6620, 12860, 13240, 25720, 43361, 84233, 86722, 168466, 173444, 212833, 216805, 336932, 346888, 421165, 425666, 433610, 673864, 842330, 851332, 867220, 1064165, 1684660, 1702664, 1734440, 2128330, 3369320, 4256660, 8513320, 27881123, 55762246, 111524492, 139405615, 223048984, 278811230, 557622460, 1115244920]

約数ペア:

[(1, 1115244920), (2, 557622460), (4, 278811230), (5, 223048984), (8, 139405615), (10, 111524492), (20, 55762246), (40, 27881123), (131, 8513320), (262, 4256660), (331, 3369320), (524, 2128330), (643, 1734440), (655, 1702664), (662, 1684660), (1048, 1064165), (1286, 867220), (1310, 851332), (1324, 842330), (1655, 673864), (2572, 433610), (2620, 425666), (2648, 421165), (3215, 346888), (3310, 336932), (5144, 216805), (5240, 212833), (6430, 173444), (6620, 168466), (12860, 86722), (13240, 84233), (25720, 43361)]