2000880

素因数分解:

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

素因数の和:423

約数の個数: 120

約数和(自身を含む): 7698912

約数和(自身を除く): 5698032

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 397, 420, 504, 560, 630, 720, 794, 840, 1008, 1191, 1260, 1588, 1680, 1985, 2382, 2520, 2779, 3176, 3573, 3970, 4764, 5040, 5558, 5955, 6352, 7146, 7940, 8337, 9528, 11116, 11910, 13895, 14292, 15880, 16674, 17865, 19056, 22232, 23820, 25011, 27790, 28584, 31760, 33348, 35730, 41685, 44464, 47640, 50022, 55580, 57168, 66696, 71460, 83370, 95280, 100044, 111160, 125055, 133392, 142920, 166740, 200088, 222320, 250110, 285840, 333480, 400176, 500220, 666960, 1000440, 2000880]

約数ペア:

[(1, 2000880), (2, 1000440), (3, 666960), (4, 500220), (5, 400176), (6, 333480), (7, 285840), (8, 250110), (9, 222320), (10, 200088), (12, 166740), (14, 142920), (15, 133392), (16, 125055), (18, 111160), (20, 100044), (21, 95280), (24, 83370), (28, 71460), (30, 66696), (35, 57168), (36, 55580), (40, 50022), (42, 47640), (45, 44464), (48, 41685), (56, 35730), (60, 33348), (63, 31760), (70, 28584), (72, 27790), (80, 25011), (84, 23820), (90, 22232), (105, 19056), (112, 17865), (120, 16674), (126, 15880), (140, 14292), (144, 13895), (168, 11910), (180, 11116), (210, 9528), (240, 8337), (252, 7940), (280, 7146), (315, 6352), (336, 5955), (360, 5558), (397, 5040), (420, 4764), (504, 3970), (560, 3573), (630, 3176), (720, 2779), (794, 2520), (840, 2382), (1008, 1985), (1191, 1680), (1260, 1588)]