31387984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{691}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 64870848

約数和(自身を除く): 33482864

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 167, 272, 334, 668, 691, 1336, 1382, 2672, 2764, 2839, 5528, 5678, 11056, 11356, 11747, 22712, 23494, 45424, 46988, 93976, 115397, 187952, 230794, 461588, 923176, 1846352, 1961749, 3923498, 7846996, 15693992, 31387984]

約数ペア:

[(1, 31387984), (2, 15693992), (4, 7846996), (8, 3923498), (16, 1961749), (17, 1846352), (34, 923176), (68, 461588), (136, 230794), (167, 187952), (272, 115397), (334, 93976), (668, 46988), (691, 45424), (1336, 23494), (1382, 22712), (2672, 11747), (2764, 11356), (2839, 11056), (5528, 5678)]