131379920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{829}}^1$

素因数の和:1132

約数の個数: 80

約数和(自身を含む): 350751360

約数和(自身を除く): 219371440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 283, 560, 566, 829, 1132, 1415, 1658, 1981, 2264, 2830, 3316, 3962, 4145, 4528, 5660, 5803, 6632, 7924, 8290, 9905, 11320, 11606, 13264, 15848, 16580, 19810, 22640, 23212, 29015, 31696, 33160, 39620, 46424, 58030, 66320, 79240, 92848, 116060, 158480, 232120, 234607, 464240, 469214, 938428, 1173035, 1642249, 1876856, 2346070, 3284498, 3753712, 4692140, 6568996, 8211245, 9384280, 13137992, 16422490, 18768560, 26275984, 32844980, 65689960, 131379920]

約数ペア:

[(1, 131379920), (2, 65689960), (4, 32844980), (5, 26275984), (7, 18768560), (8, 16422490), (10, 13137992), (14, 9384280), (16, 8211245), (20, 6568996), (28, 4692140), (35, 3753712), (40, 3284498), (56, 2346070), (70, 1876856), (80, 1642249), (112, 1173035), (140, 938428), (280, 469214), (283, 464240), (560, 234607), (566, 232120), (829, 158480), (1132, 116060), (1415, 92848), (1658, 79240), (1981, 66320), (2264, 58030), (2830, 46424), (3316, 39620), (3962, 33160), (4145, 31696), (4528, 29015), (5660, 23212), (5803, 22640), (6632, 19810), (7924, 16580), (8290, 15848), (9905, 13264), (11320, 11606)]