31882880

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1607}}^1$

素因数の和:1657

約数の個数: 64

約数和(自身を含む): 78727680

約数和(自身を除く): 46844800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1607, 1984, 2480, 3214, 3968, 4960, 6428, 8035, 9920, 12856, 16070, 19840, 25712, 32140, 49817, 51424, 64280, 99634, 102848, 128560, 199268, 205696, 249085, 257120, 398536, 498170, 514240, 797072, 996340, 1028480, 1594144, 1992680, 3188288, 3985360, 6376576, 7970720, 15941440, 31882880]

約数ペア:

[(1, 31882880), (2, 15941440), (4, 7970720), (5, 6376576), (8, 3985360), (10, 3188288), (16, 1992680), (20, 1594144), (31, 1028480), (32, 996340), (40, 797072), (62, 514240), (64, 498170), (80, 398536), (124, 257120), (128, 249085), (155, 205696), (160, 199268), (248, 128560), (310, 102848), (320, 99634), (496, 64280), (620, 51424), (640, 49817), (992, 32140), (1240, 25712), (1607, 19840), (1984, 16070), (2480, 12856), (3214, 9920), (3968, 8035), (4960, 6428)]