280585240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{3119}}^1$

素因数の和:3316

約数の個数: 64

約数和(自身を含む): 684028800

約数和(自身を除く): 403443560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 173, 260, 346, 520, 692, 865, 1384, 1730, 2249, 3119, 3460, 4498, 6238, 6920, 8996, 11245, 12476, 15595, 17992, 22490, 24952, 31190, 40547, 44980, 62380, 81094, 89960, 124760, 162188, 202735, 324376, 405470, 539587, 810940, 1079174, 1621880, 2158348, 2697935, 4316696, 5395870, 7014631, 10791740, 14029262, 21583480, 28058524, 35073155, 56117048, 70146310, 140292620, 280585240]

約数ペア:

[(1, 280585240), (2, 140292620), (4, 70146310), (5, 56117048), (8, 35073155), (10, 28058524), (13, 21583480), (20, 14029262), (26, 10791740), (40, 7014631), (52, 5395870), (65, 4316696), (104, 2697935), (130, 2158348), (173, 1621880), (260, 1079174), (346, 810940), (520, 539587), (692, 405470), (865, 324376), (1384, 202735), (1730, 162188), (2249, 124760), (3119, 89960), (3460, 81094), (4498, 62380), (6238, 44980), (6920, 40547), (8996, 31190), (11245, 24952), (12476, 22490), (15595, 17992)]