31027760

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 77004000

約数和(自身を除く): 45976240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 137, 149, 152, 190, 274, 298, 304, 380, 548, 596, 685, 745, 760, 1096, 1192, 1370, 1490, 1520, 2192, 2384, 2603, 2740, 2831, 2980, 5206, 5480, 5662, 5960, 10412, 10960, 11324, 11920, 13015, 14155, 20413, 20824, 22648, 26030, 28310, 40826, 41648, 45296, 52060, 56620, 81652, 102065, 104120, 113240, 163304, 204130, 208240, 226480, 326608, 387847, 408260, 775694, 816520, 1551388, 1633040, 1939235, 3102776, 3878470, 6205552, 7756940, 15513880, 31027760]

約数ペア:

[(1, 31027760), (2, 15513880), (4, 7756940), (5, 6205552), (8, 3878470), (10, 3102776), (16, 1939235), (19, 1633040), (20, 1551388), (38, 816520), (40, 775694), (76, 408260), (80, 387847), (95, 326608), (137, 226480), (149, 208240), (152, 204130), (190, 163304), (274, 113240), (298, 104120), (304, 102065), (380, 81652), (548, 56620), (596, 52060), (685, 45296), (745, 41648), (760, 40826), (1096, 28310), (1192, 26030), (1370, 22648), (1490, 20824), (1520, 20413), (2192, 14155), (2384, 13015), (2603, 11920), (2740, 11324), (2831, 10960), (2980, 10412), (5206, 5960), (5480, 5662)]