31787836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 61205760

約数和(自身を除く): 29417924

約数列:

[1, 2, 4, 19, 38, 43, 71, 76, 86, 137, 142, 172, 274, 284, 548, 817, 1349, 1634, 2603, 2698, 3053, 3268, 5206, 5396, 5891, 6106, 9727, 10412, 11782, 12212, 19454, 23564, 38908, 58007, 111929, 116014, 184813, 223858, 232028, 369626, 418261, 447716, 739252, 836522, 1673044, 7946959, 15893918, 31787836]

約数ペア:

[(1, 31787836), (2, 15893918), (4, 7946959), (19, 1673044), (38, 836522), (43, 739252), (71, 447716), (76, 418261), (86, 369626), (137, 232028), (142, 223858), (172, 184813), (274, 116014), (284, 111929), (548, 58007), (817, 38908), (1349, 23564), (1634, 19454), (2603, 12212), (2698, 11782), (3053, 10412), (3268, 9727), (5206, 6106), (5396, 5891)]