6909980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 18443376

約数和(自身を除く): 11533396

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 641, 770, 980, 1078, 1282, 1540, 2156, 2564, 2695, 3205, 4487, 5390, 6410, 7051, 8974, 10780, 12820, 14102, 17948, 22435, 28204, 31409, 35255, 44870, 49357, 62818, 70510, 89740, 98714, 125636, 141020, 157045, 197428, 246785, 314090, 345499, 493570, 628180, 690998, 987140, 1381996, 1727495, 3454990, 6909980]

約数ペア:

[(1, 6909980), (2, 3454990), (4, 1727495), (5, 1381996), (7, 987140), (10, 690998), (11, 628180), (14, 493570), (20, 345499), (22, 314090), (28, 246785), (35, 197428), (44, 157045), (49, 141020), (55, 125636), (70, 98714), (77, 89740), (98, 70510), (110, 62818), (140, 49357), (154, 44870), (196, 35255), (220, 31409), (245, 28204), (308, 22435), (385, 17948), (490, 14102), (539, 12820), (641, 10780), (770, 8974), (980, 7051), (1078, 6410), (1282, 5390), (1540, 4487), (2156, 3205), (2564, 2695)]