31808660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 77898240

約数和(自身を除く): 46089580

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 47, 52, 65, 76, 94, 95, 130, 137, 188, 190, 235, 247, 260, 274, 380, 470, 494, 548, 611, 685, 893, 940, 988, 1222, 1235, 1370, 1781, 1786, 2444, 2470, 2603, 2740, 3055, 3562, 3572, 4465, 4940, 5206, 6110, 6439, 7124, 8905, 8930, 10412, 11609, 12220, 12878, 13015, 17810, 17860, 23218, 25756, 26030, 32195, 33839, 35620, 46436, 52060, 58045, 64390, 67678, 83707, 116090, 122341, 128780, 135356, 167414, 169195, 232180, 244682, 334828, 338390, 418535, 489364, 611705, 676780, 837070, 1223410, 1590433, 1674140, 2446820, 3180866, 6361732, 7952165, 15904330, 31808660]

約数ペア:

[(1, 31808660), (2, 15904330), (4, 7952165), (5, 6361732), (10, 3180866), (13, 2446820), (19, 1674140), (20, 1590433), (26, 1223410), (38, 837070), (47, 676780), (52, 611705), (65, 489364), (76, 418535), (94, 338390), (95, 334828), (130, 244682), (137, 232180), (188, 169195), (190, 167414), (235, 135356), (247, 128780), (260, 122341), (274, 116090), (380, 83707), (470, 67678), (494, 64390), (548, 58045), (611, 52060), (685, 46436), (893, 35620), (940, 33839), (988, 32195), (1222, 26030), (1235, 25756), (1370, 23218), (1781, 17860), (1786, 17810), (2444, 13015), (2470, 12878), (2603, 12220), (2740, 11609), (3055, 10412), (3562, 8930), (3572, 8905), (4465, 7124), (4940, 6439), (5206, 6110)]