1297520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{331}}^1$

素因数の和:358

約数の個数: 60

約数和(自身を含む): 3519864

約数和(自身を除く): 2222344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 331, 392, 490, 560, 662, 784, 980, 1324, 1655, 1960, 2317, 2648, 3310, 3920, 4634, 5296, 6620, 9268, 11585, 13240, 16219, 18536, 23170, 26480, 32438, 37072, 46340, 64876, 81095, 92680, 129752, 162190, 185360, 259504, 324380, 648760, 1297520]

約数ペア:

[(1, 1297520), (2, 648760), (4, 324380), (5, 259504), (7, 185360), (8, 162190), (10, 129752), (14, 92680), (16, 81095), (20, 64876), (28, 46340), (35, 37072), (40, 32438), (49, 26480), (56, 23170), (70, 18536), (80, 16219), (98, 13240), (112, 11585), (140, 9268), (196, 6620), (245, 5296), (280, 4634), (331, 3920), (392, 3310), (490, 2648), (560, 2317), (662, 1960), (784, 1655), (980, 1324)]