15911680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 39441024

約数和(自身を除く): 23529344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 401, 496, 620, 640, 802, 992, 1240, 1280, 1604, 1984, 2005, 2480, 3208, 3968, 4010, 4960, 6416, 7936, 8020, 9920, 12431, 12832, 16040, 19840, 24862, 25664, 32080, 39680, 49724, 51328, 62155, 64160, 99448, 102656, 124310, 128320, 198896, 248620, 256640, 397792, 497240, 513280, 795584, 994480, 1591168, 1988960, 3182336, 3977920, 7955840, 15911680]

約数ペア:

[(1, 15911680), (2, 7955840), (4, 3977920), (5, 3182336), (8, 1988960), (10, 1591168), (16, 994480), (20, 795584), (31, 513280), (32, 497240), (40, 397792), (62, 256640), (64, 248620), (80, 198896), (124, 128320), (128, 124310), (155, 102656), (160, 99448), (248, 64160), (256, 62155), (310, 51328), (320, 49724), (401, 39680), (496, 32080), (620, 25664), (640, 24862), (802, 19840), (992, 16040), (1240, 12832), (1280, 12431), (1604, 9920), (1984, 8020), (2005, 7936), (2480, 6416), (3208, 4960), (3968, 4010)]