441980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1$

素因数の和:75

約数の個数: 72

約数和(自身を含む): 1206576

約数和(自身を除く): 764596

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 41, 44, 49, 55, 70, 77, 82, 98, 110, 140, 154, 164, 196, 205, 220, 245, 287, 308, 385, 410, 451, 490, 539, 574, 770, 820, 902, 980, 1078, 1148, 1435, 1540, 1804, 2009, 2156, 2255, 2695, 2870, 3157, 4018, 4510, 5390, 5740, 6314, 8036, 9020, 10045, 10780, 12628, 15785, 20090, 22099, 31570, 40180, 44198, 63140, 88396, 110495, 220990, 441980]

約数ペア:

[(1, 441980), (2, 220990), (4, 110495), (5, 88396), (7, 63140), (10, 44198), (11, 40180), (14, 31570), (20, 22099), (22, 20090), (28, 15785), (35, 12628), (41, 10780), (44, 10045), (49, 9020), (55, 8036), (70, 6314), (77, 5740), (82, 5390), (98, 4510), (110, 4018), (140, 3157), (154, 2870), (164, 2695), (196, 2255), (205, 2156), (220, 2009), (245, 1804), (287, 1540), (308, 1435), (385, 1148), (410, 1078), (451, 980), (490, 902), (539, 820), (574, 770)]