31423730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 64350720

約数和(自身を除く): 32926990

約数列:

[1, 2, 5, 10, 13, 26, 37, 47, 65, 74, 94, 130, 139, 185, 235, 278, 370, 470, 481, 611, 695, 962, 1222, 1390, 1739, 1807, 2405, 3055, 3478, 3614, 4810, 5143, 6110, 6533, 8695, 9035, 10286, 13066, 17390, 18070, 22607, 25715, 32665, 45214, 51430, 65330, 66859, 84929, 113035, 133718, 169858, 226070, 241721, 334295, 424645, 483442, 668590, 849290, 1208605, 2417210, 3142373, 6284746, 15711865, 31423730]

約数ペア:

[(1, 31423730), (2, 15711865), (5, 6284746), (10, 3142373), (13, 2417210), (26, 1208605), (37, 849290), (47, 668590), (65, 483442), (74, 424645), (94, 334295), (130, 241721), (139, 226070), (185, 169858), (235, 133718), (278, 113035), (370, 84929), (470, 66859), (481, 65330), (611, 51430), (695, 45214), (962, 32665), (1222, 25715), (1390, 22607), (1739, 18070), (1807, 17390), (2405, 13066), (3055, 10286), (3478, 9035), (3614, 8695), (4810, 6533), (5143, 6110)]