15513880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 37260000

約数和(自身を除く): 21746120

約数列:

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

約数ペア:

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