666960

素因数分解:

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

素因数の和:420

約数の個数: 80

約数和(自身を含む): 2368896

約数和(自身を除く): 1701936

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 397, 420, 560, 794, 840, 1191, 1588, 1680, 1985, 2382, 2779, 3176, 3970, 4764, 5558, 5955, 6352, 7940, 8337, 9528, 11116, 11910, 13895, 15880, 16674, 19056, 22232, 23820, 27790, 31760, 33348, 41685, 44464, 47640, 55580, 66696, 83370, 95280, 111160, 133392, 166740, 222320, 333480, 666960]

約数ペア:

[(1, 666960), (2, 333480), (3, 222320), (4, 166740), (5, 133392), (6, 111160), (7, 95280), (8, 83370), (10, 66696), (12, 55580), (14, 47640), (15, 44464), (16, 41685), (20, 33348), (21, 31760), (24, 27790), (28, 23820), (30, 22232), (35, 19056), (40, 16674), (42, 15880), (48, 13895), (56, 11910), (60, 11116), (70, 9528), (80, 8337), (84, 7940), (105, 6352), (112, 5955), (120, 5558), (140, 4764), (168, 3970), (210, 3176), (240, 2779), (280, 2382), (336, 1985), (397, 1680), (420, 1588), (560, 1191), (794, 840)]