31197880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1663}}^1$

素因数の和:1748

約数の個数: 64

約数和(自身を含む): 81469440

約数和(自身を除く): 50271560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1663, 1876, 2345, 2680, 3326, 3752, 4690, 6652, 8315, 9380, 11641, 13304, 16630, 18760, 23282, 33260, 46564, 58205, 66520, 93128, 111421, 116410, 222842, 232820, 445684, 465640, 557105, 779947, 891368, 1114210, 1559894, 2228420, 3119788, 3899735, 4456840, 6239576, 7799470, 15598940, 31197880]

約数ペア:

[(1, 31197880), (2, 15598940), (4, 7799470), (5, 6239576), (7, 4456840), (8, 3899735), (10, 3119788), (14, 2228420), (20, 1559894), (28, 1114210), (35, 891368), (40, 779947), (56, 557105), (67, 465640), (70, 445684), (134, 232820), (140, 222842), (268, 116410), (280, 111421), (335, 93128), (469, 66520), (536, 58205), (670, 46564), (938, 33260), (1340, 23282), (1663, 18760), (1876, 16630), (2345, 13304), (2680, 11641), (3326, 9380), (3752, 8315), (4690, 6652)]