660620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 1542240

約数和(自身を除く): 881620

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 67, 68, 85, 116, 134, 145, 170, 268, 290, 335, 340, 493, 580, 670, 986, 1139, 1340, 1943, 1972, 2278, 2465, 3886, 4556, 4930, 5695, 7772, 9715, 9860, 11390, 19430, 22780, 33031, 38860, 66062, 132124, 165155, 330310, 660620]

約数ペア:

[(1, 660620), (2, 330310), (4, 165155), (5, 132124), (10, 66062), (17, 38860), (20, 33031), (29, 22780), (34, 19430), (58, 11390), (67, 9860), (68, 9715), (85, 7772), (116, 5695), (134, 4930), (145, 4556), (170, 3886), (268, 2465), (290, 2278), (335, 1972), (340, 1943), (493, 1340), (580, 1139), (670, 986)]