171206980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{4261}}^1$

素因数の和:4325

約数の個数: 72

約数和(自身を含む): 428535576

約数和(自身を除く): 257328596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 4261, 5740, 8036, 8522, 10045, 17044, 20090, 21305, 29827, 40180, 42610, 59654, 85220, 119308, 149135, 174701, 208789, 298270, 349402, 417578, 596540, 698804, 835156, 873505, 1043945, 1222907, 1747010, 2087890, 2445814, 3494020, 4175780, 4891628, 6114535, 8560349, 12229070, 17120698, 24458140, 34241396, 42801745, 85603490, 171206980]

約数ペア:

[(1, 171206980), (2, 85603490), (4, 42801745), (5, 34241396), (7, 24458140), (10, 17120698), (14, 12229070), (20, 8560349), (28, 6114535), (35, 4891628), (41, 4175780), (49, 3494020), (70, 2445814), (82, 2087890), (98, 1747010), (140, 1222907), (164, 1043945), (196, 873505), (205, 835156), (245, 698804), (287, 596540), (410, 417578), (490, 349402), (574, 298270), (820, 208789), (980, 174701), (1148, 149135), (1435, 119308), (2009, 85220), (2870, 59654), (4018, 42610), (4261, 40180), (5740, 29827), (8036, 21305), (8522, 20090), (10045, 17044)]