81357392

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 174988800

約数和(自身を除く): 93631408

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 89, 97, 124, 152, 178, 194, 248, 304, 356, 388, 496, 589, 712, 776, 1178, 1424, 1552, 1691, 1843, 2356, 2759, 3007, 3382, 3686, 4712, 5518, 6014, 6764, 7372, 8633, 9424, 11036, 12028, 13528, 14744, 17266, 22072, 24056, 27056, 29488, 34532, 44144, 48112, 52421, 57133, 69064, 104842, 114266, 138128, 164027, 209684, 228532, 267623, 328054, 419368, 457064, 535246, 656108, 838736, 914128, 1070492, 1312216, 2140984, 2624432, 4281968, 5084837, 10169674, 20339348, 40678696, 81357392]

約数ペア:

[(1, 81357392), (2, 40678696), (4, 20339348), (8, 10169674), (16, 5084837), (19, 4281968), (31, 2624432), (38, 2140984), (62, 1312216), (76, 1070492), (89, 914128), (97, 838736), (124, 656108), (152, 535246), (178, 457064), (194, 419368), (248, 328054), (304, 267623), (356, 228532), (388, 209684), (496, 164027), (589, 138128), (712, 114266), (776, 104842), (1178, 69064), (1424, 57133), (1552, 52421), (1691, 48112), (1843, 44144), (2356, 34532), (2759, 29488), (3007, 27056), (3382, 24056), (3686, 22072), (4712, 17266), (5518, 14744), (6014, 13528), (6764, 12028), (7372, 11036), (8633, 9424)]