20155560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1663}}^1$

素因数の和:1778

約数の個数: 64

約数和(自身を含む): 61102080

約数和(自身を除く): 40946520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 1663, 2020, 2424, 3030, 3326, 4040, 4989, 6060, 6652, 8315, 9978, 12120, 13304, 16630, 19956, 24945, 33260, 39912, 49890, 66520, 99780, 167963, 199560, 335926, 503889, 671852, 839815, 1007778, 1343704, 1679630, 2015556, 2519445, 3359260, 4031112, 5038890, 6718520, 10077780, 20155560]

約数ペア:

[(1, 20155560), (2, 10077780), (3, 6718520), (4, 5038890), (5, 4031112), (6, 3359260), (8, 2519445), (10, 2015556), (12, 1679630), (15, 1343704), (20, 1007778), (24, 839815), (30, 671852), (40, 503889), (60, 335926), (101, 199560), (120, 167963), (202, 99780), (303, 66520), (404, 49890), (505, 39912), (606, 33260), (808, 24945), (1010, 19956), (1212, 16630), (1515, 13304), (1663, 12120), (2020, 9978), (2424, 8315), (3030, 6652), (3326, 6060), (4040, 4989)]