64078420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2557}}^1$

素因数の和:2752

約数の個数: 48

約数和(自身を含む): 154707840

約数和(自身を除く): 90629420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1790, 2506, 2557, 3580, 5012, 5114, 6265, 10228, 12530, 12785, 17899, 25060, 25570, 35798, 51140, 71596, 89495, 178990, 357980, 457703, 915406, 1830812, 2288515, 3203921, 4577030, 6407842, 9154060, 12815684, 16019605, 32039210, 64078420]

約数ペア:

[(1, 64078420), (2, 32039210), (4, 16019605), (5, 12815684), (7, 9154060), (10, 6407842), (14, 4577030), (20, 3203921), (28, 2288515), (35, 1830812), (70, 915406), (140, 457703), (179, 357980), (358, 178990), (716, 89495), (895, 71596), (1253, 51140), (1790, 35798), (2506, 25570), (2557, 25060), (3580, 17899), (5012, 12785), (5114, 12530), (6265, 10228)]