30758420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19973}}^1$

素因数の和:20000

約数の個数: 48

約数和(自身を含む): 80535168

約数和(自身を除く): 49776748

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 19973, 39946, 79892, 99865, 139811, 199730, 219703, 279622, 399460, 439406, 559244, 699055, 878812, 1098515, 1398110, 1537921, 2197030, 2796220, 3075842, 4394060, 6151684, 7689605, 15379210, 30758420]

約数ペア:

[(1, 30758420), (2, 15379210), (4, 7689605), (5, 6151684), (7, 4394060), (10, 3075842), (11, 2796220), (14, 2197030), (20, 1537921), (22, 1398110), (28, 1098515), (35, 878812), (44, 699055), (55, 559244), (70, 439406), (77, 399460), (110, 279622), (140, 219703), (154, 199730), (220, 139811), (308, 99865), (385, 79892), (770, 39946), (1540, 19973)]