81894840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:377

約数の個数: 128

約数和(自身を含む): 257774400

約数和(自身を除く): 175879560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 101, 116, 120, 145, 174, 202, 232, 233, 290, 303, 348, 404, 435, 466, 505, 580, 606, 696, 699, 808, 870, 932, 1010, 1160, 1165, 1212, 1398, 1515, 1740, 1864, 2020, 2330, 2424, 2796, 2929, 3030, 3480, 3495, 4040, 4660, 5592, 5858, 6060, 6757, 6990, 8787, 9320, 11716, 12120, 13514, 13980, 14645, 17574, 20271, 23432, 23533, 27028, 27960, 29290, 33785, 35148, 40542, 43935, 47066, 54056, 58580, 67570, 70296, 70599, 81084, 87870, 94132, 101355, 117160, 117665, 135140, 141198, 162168, 175740, 188264, 202710, 235330, 270280, 282396, 351480, 352995, 405420, 470660, 564792, 682457, 705990, 810840, 941320, 1364914, 1411980, 2047371, 2729828, 2823960, 3412285, 4094742, 5459656, 6824570, 8189484, 10236855, 13649140, 16378968, 20473710, 27298280, 40947420, 81894840]

約数ペア:

[(1, 81894840), (2, 40947420), (3, 27298280), (4, 20473710), (5, 16378968), (6, 13649140), (8, 10236855), (10, 8189484), (12, 6824570), (15, 5459656), (20, 4094742), (24, 3412285), (29, 2823960), (30, 2729828), (40, 2047371), (58, 1411980), (60, 1364914), (87, 941320), (101, 810840), (116, 705990), (120, 682457), (145, 564792), (174, 470660), (202, 405420), (232, 352995), (233, 351480), (290, 282396), (303, 270280), (348, 235330), (404, 202710), (435, 188264), (466, 175740), (505, 162168), (580, 141198), (606, 135140), (696, 117665), (699, 117160), (808, 101355), (870, 94132), (932, 87870), (1010, 81084), (1160, 70599), (1165, 70296), (1212, 67570), (1398, 58580), (1515, 54056), (1740, 47066), (1864, 43935), (2020, 40542), (2330, 35148), (2424, 33785), (2796, 29290), (2929, 27960), (3030, 27028), (3480, 23533), (3495, 23432), (4040, 20271), (4660, 17574), (5592, 14645), (5858, 13980), (6060, 13514), (6757, 12120), (6990, 11716), (8787, 9320)]