90778120

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{563}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 213192000

約数和(自身を除く): 122413880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 139, 145, 232, 278, 290, 556, 563, 580, 695, 1112, 1126, 1160, 1390, 2252, 2780, 2815, 4031, 4504, 5560, 5630, 8062, 11260, 16124, 16327, 20155, 22520, 32248, 32654, 40310, 65308, 78257, 80620, 81635, 130616, 156514, 161240, 163270, 313028, 326540, 391285, 626056, 653080, 782570, 1565140, 2269453, 3130280, 4538906, 9077812, 11347265, 18155624, 22694530, 45389060, 90778120]

約数ペア:

[(1, 90778120), (2, 45389060), (4, 22694530), (5, 18155624), (8, 11347265), (10, 9077812), (20, 4538906), (29, 3130280), (40, 2269453), (58, 1565140), (116, 782570), (139, 653080), (145, 626056), (232, 391285), (278, 326540), (290, 313028), (556, 163270), (563, 161240), (580, 156514), (695, 130616), (1112, 81635), (1126, 80620), (1160, 78257), (1390, 65308), (2252, 40310), (2780, 32654), (2815, 32248), (4031, 22520), (4504, 20155), (5560, 16327), (5630, 16124), (8062, 11260)]