71639440

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2861}}^1$

素因数の和:3187

約数の個数: 40

約数和(自身を含む): 167152248

約数和(自身を除く): 95512808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 2861, 3130, 5008, 5722, 6260, 11444, 12520, 14305, 22888, 25040, 28610, 45776, 57220, 114440, 228880, 895493, 1790986, 3581972, 4477465, 7163944, 8954930, 14327888, 17909860, 35819720, 71639440]

約数ペア:

[(1, 71639440), (2, 35819720), (4, 17909860), (5, 14327888), (8, 8954930), (10, 7163944), (16, 4477465), (20, 3581972), (40, 1790986), (80, 895493), (313, 228880), (626, 114440), (1252, 57220), (1565, 45776), (2504, 28610), (2861, 25040), (3130, 22888), (5008, 14305), (5722, 12520), (6260, 11444)]