817774721320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{383}}^1\times {\mathrm{1721921}}^1$

素因数の和:1722346

約数の個数: 64

約数和(自身を含む): 1904307978240

約数和(自身を除く): 1086533256920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 383, 620, 766, 1240, 1532, 1915, 3064, 3830, 7660, 11873, 15320, 23746, 47492, 59365, 94984, 118730, 237460, 474920, 1721921, 3443842, 6887684, 8609605, 13775368, 17219210, 34438420, 53379551, 68876840, 106759102, 213518204, 266897755, 427036408, 533795510, 659495743, 1067591020, 1318991486, 2135182040, 2637982972, 3297478715, 5275965944, 6594957430, 13189914860, 20444368033, 26379829720, 40888736066, 81777472132, 102221840165, 163554944264, 204443680330, 408887360660, 817774721320]

約数ペア:

[(1, 817774721320), (2, 408887360660), (4, 204443680330), (5, 163554944264), (8, 102221840165), (10, 81777472132), (20, 40888736066), (31, 26379829720), (40, 20444368033), (62, 13189914860), (124, 6594957430), (155, 5275965944), (248, 3297478715), (310, 2637982972), (383, 2135182040), (620, 1318991486), (766, 1067591020), (1240, 659495743), (1532, 533795510), (1915, 427036408), (3064, 266897755), (3830, 213518204), (7660, 106759102), (11873, 68876840), (15320, 53379551), (23746, 34438420), (47492, 17219210), (59365, 13775368), (94984, 8609605), (118730, 6887684), (237460, 3443842), (474920, 1721921)]