16663120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6719}}^1$

素因数の和:6763

約数の個数: 40

約数和(自身を含む): 39997440

約数和(自身を除く): 23334320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6719, 13438, 26876, 33595, 53752, 67190, 107504, 134380, 208289, 268760, 416578, 537520, 833156, 1041445, 1666312, 2082890, 3332624, 4165780, 8331560, 16663120]

約数ペア:

[(1, 16663120), (2, 8331560), (4, 4165780), (5, 3332624), (8, 2082890), (10, 1666312), (16, 1041445), (20, 833156), (31, 537520), (40, 416578), (62, 268760), (80, 208289), (124, 134380), (155, 107504), (248, 67190), (310, 53752), (496, 33595), (620, 26876), (1240, 13438), (2480, 6719)]