20800362020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1\times {\mathrm{1051}}^1$

素因数の和:1461

約数の個数: 96

約数和(自身を含む): 45657271296

約数和(自身を除く): 24856909276

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 137, 155, 233, 274, 310, 466, 548, 620, 685, 932, 1051, 1165, 1370, 2102, 2330, 2740, 4204, 4247, 4660, 5255, 7223, 8494, 10510, 14446, 16988, 21020, 21235, 28892, 31921, 32581, 36115, 42470, 63842, 65162, 72230, 84940, 127684, 130324, 143987, 144460, 159605, 162905, 244883, 287974, 319210, 325810, 489766, 575948, 638420, 651620, 719935, 979532, 989551, 1224415, 1439870, 1979102, 2448830, 2879740, 3958204, 4463597, 4897660, 4947755, 7591373, 8927194, 9895510, 15182746, 17854388, 19791020, 22317985, 30365492, 33548971, 37956865, 44635970, 67097942, 75913730, 89271940, 134195884, 151827460, 167744855, 335489710, 670979420, 1040018101, 2080036202, 4160072404, 5200090505, 10400181010, 20800362020]

約数ペア:

[(1, 20800362020), (2, 10400181010), (4, 5200090505), (5, 4160072404), (10, 2080036202), (20, 1040018101), (31, 670979420), (62, 335489710), (124, 167744855), (137, 151827460), (155, 134195884), (233, 89271940), (274, 75913730), (310, 67097942), (466, 44635970), (548, 37956865), (620, 33548971), (685, 30365492), (932, 22317985), (1051, 19791020), (1165, 17854388), (1370, 15182746), (2102, 9895510), (2330, 8927194), (2740, 7591373), (4204, 4947755), (4247, 4897660), (4660, 4463597), (5255, 3958204), (7223, 2879740), (8494, 2448830), (10510, 1979102), (14446, 1439870), (16988, 1224415), (21020, 989551), (21235, 979532), (28892, 719935), (31921, 651620), (32581, 638420), (36115, 575948), (42470, 489766), (63842, 325810), (65162, 319210), (72230, 287974), (84940, 244883), (127684, 162905), (130324, 159605), (143987, 144460)]