64897980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{809}}^1$

素因数の和:1019

約数の個数: 96

約数和(自身を含む): 209018880

約数和(自身を除く): 144120900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 191, 210, 382, 420, 573, 764, 809, 955, 1146, 1337, 1618, 1910, 2292, 2427, 2674, 2865, 3236, 3820, 4011, 4045, 4854, 5348, 5663, 5730, 6685, 8022, 8090, 9708, 11326, 11460, 12135, 13370, 16044, 16180, 16989, 20055, 22652, 24270, 26740, 28315, 33978, 40110, 48540, 56630, 67956, 80220, 84945, 113260, 154519, 169890, 309038, 339780, 463557, 618076, 772595, 927114, 1081633, 1545190, 1854228, 2163266, 2317785, 3090380, 3244899, 4326532, 4635570, 5408165, 6489798, 9271140, 10816330, 12979596, 16224495, 21632660, 32448990, 64897980]

約数ペア:

[(1, 64897980), (2, 32448990), (3, 21632660), (4, 16224495), (5, 12979596), (6, 10816330), (7, 9271140), (10, 6489798), (12, 5408165), (14, 4635570), (15, 4326532), (20, 3244899), (21, 3090380), (28, 2317785), (30, 2163266), (35, 1854228), (42, 1545190), (60, 1081633), (70, 927114), (84, 772595), (105, 618076), (140, 463557), (191, 339780), (210, 309038), (382, 169890), (420, 154519), (573, 113260), (764, 84945), (809, 80220), (955, 67956), (1146, 56630), (1337, 48540), (1618, 40110), (1910, 33978), (2292, 28315), (2427, 26740), (2674, 24270), (2865, 22652), (3236, 20055), (3820, 16989), (4011, 16180), (4045, 16044), (4854, 13370), (5348, 12135), (5663, 11460), (5730, 11326), (6685, 9708), (8022, 8090)]