2597980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{241}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 6952176

約数和(自身を除く): 4354196

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, 241, 245, 308, 385, 482, 490, 539, 770, 964, 980, 1078, 1205, 1540, 1687, 2156, 2410, 2651, 2695, 3374, 4820, 5302, 5390, 6748, 8435, 10604, 10780, 11809, 13255, 16870, 18557, 23618, 26510, 33740, 37114, 47236, 53020, 59045, 74228, 92785, 118090, 129899, 185570, 236180, 259798, 371140, 519596, 649495, 1298990, 2597980]

約数ペア:

[(1, 2597980), (2, 1298990), (4, 649495), (5, 519596), (7, 371140), (10, 259798), (11, 236180), (14, 185570), (20, 129899), (22, 118090), (28, 92785), (35, 74228), (44, 59045), (49, 53020), (55, 47236), (70, 37114), (77, 33740), (98, 26510), (110, 23618), (140, 18557), (154, 16870), (196, 13255), (220, 11809), (241, 10780), (245, 10604), (308, 8435), (385, 6748), (482, 5390), (490, 5302), (539, 4820), (770, 3374), (964, 2695), (980, 2651), (1078, 2410), (1205, 2156), (1540, 1687)]