20589890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3907}}^1$

素因数の和:3962

約数の個数: 32

約数和(自身を含む): 40518144

約数和(自身を除く): 19928254

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 3907, 5270, 7814, 19535, 39070, 66419, 121117, 132838, 242234, 332095, 605585, 664190, 1211170, 2058989, 4117978, 10294945, 20589890]

約数ペア:

[(1, 20589890), (2, 10294945), (5, 4117978), (10, 2058989), (17, 1211170), (31, 664190), (34, 605585), (62, 332095), (85, 242234), (155, 132838), (170, 121117), (310, 66419), (527, 39070), (1054, 19535), (2635, 7814), (3907, 5270)]