4501980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{397}}^1$

素因数の和:425

約数の個数: 120

約数和(自身を含む): 16181088

約数和(自身を除く): 11679108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 397, 405, 420, 540, 567, 630, 756, 794, 810, 945, 1134, 1191, 1260, 1588, 1620, 1890, 1985, 2268, 2382, 2779, 2835, 3573, 3780, 3970, 4764, 5558, 5670, 5955, 7146, 7940, 8337, 10719, 11116, 11340, 11910, 13895, 14292, 16674, 17865, 21438, 23820, 25011, 27790, 32157, 33348, 35730, 41685, 42876, 50022, 53595, 55580, 64314, 71460, 75033, 83370, 100044, 107190, 125055, 128628, 150066, 160785, 166740, 214380, 225099, 250110, 300132, 321570, 375165, 450198, 500220, 643140, 750330, 900396, 1125495, 1500660, 2250990, 4501980]

約数ペア:

[(1, 4501980), (2, 2250990), (3, 1500660), (4, 1125495), (5, 900396), (6, 750330), (7, 643140), (9, 500220), (10, 450198), (12, 375165), (14, 321570), (15, 300132), (18, 250110), (20, 225099), (21, 214380), (27, 166740), (28, 160785), (30, 150066), (35, 128628), (36, 125055), (42, 107190), (45, 100044), (54, 83370), (60, 75033), (63, 71460), (70, 64314), (81, 55580), (84, 53595), (90, 50022), (105, 42876), (108, 41685), (126, 35730), (135, 33348), (140, 32157), (162, 27790), (180, 25011), (189, 23820), (210, 21438), (252, 17865), (270, 16674), (315, 14292), (324, 13895), (378, 11910), (397, 11340), (405, 11116), (420, 10719), (540, 8337), (567, 7940), (630, 7146), (756, 5955), (794, 5670), (810, 5558), (945, 4764), (1134, 3970), (1191, 3780), (1260, 3573), (1588, 2835), (1620, 2779), (1890, 2382), (1985, 2268)]