20125064180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{619}}^1\times {\mathrm{9619}}^1$

素因数の和:10273

約数の個数: 72

約数和(自身を含む): 45842378400

約数和(自身を除く): 25717314220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 619, 676, 845, 1238, 1690, 2476, 3095, 3380, 6190, 8047, 9619, 12380, 16094, 19238, 32188, 38476, 40235, 48095, 80470, 96190, 104611, 125047, 160940, 192380, 209222, 250094, 418444, 500188, 523055, 625235, 1046110, 1250470, 1625611, 2092220, 2500940, 3251222, 5954161, 6502444, 8128055, 11908322, 16256110, 23816644, 29770805, 32512220, 59541610, 77404093, 119083220, 154808186, 309616372, 387020465, 774040930, 1006253209, 1548081860, 2012506418, 4025012836, 5031266045, 10062532090, 20125064180]

約数ペア:

[(1, 20125064180), (2, 10062532090), (4, 5031266045), (5, 4025012836), (10, 2012506418), (13, 1548081860), (20, 1006253209), (26, 774040930), (52, 387020465), (65, 309616372), (130, 154808186), (169, 119083220), (260, 77404093), (338, 59541610), (619, 32512220), (676, 29770805), (845, 23816644), (1238, 16256110), (1690, 11908322), (2476, 8128055), (3095, 6502444), (3380, 5954161), (6190, 3251222), (8047, 2500940), (9619, 2092220), (12380, 1625611), (16094, 1250470), (19238, 1046110), (32188, 625235), (38476, 523055), (40235, 500188), (48095, 418444), (80470, 250094), (96190, 209222), (104611, 192380), (125047, 160940)]