2131990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 4719600

約数和(自身を除く): 2587610

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 229, 245, 266, 458, 490, 665, 931, 1145, 1330, 1603, 1862, 2290, 3206, 4351, 4655, 8015, 8702, 9310, 11221, 16030, 21755, 22442, 30457, 43510, 56105, 60914, 112210, 152285, 213199, 304570, 426398, 1065995, 2131990]

約数ペア:

[(1, 2131990), (2, 1065995), (5, 426398), (7, 304570), (10, 213199), (14, 152285), (19, 112210), (35, 60914), (38, 56105), (49, 43510), (70, 30457), (95, 22442), (98, 21755), (133, 16030), (190, 11221), (229, 9310), (245, 8702), (266, 8015), (458, 4655), (490, 4351), (665, 3206), (931, 2290), (1145, 1862), (1330, 1603)]