71987560

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{21683}}^1$

素因数の和:21777

約数の個数: 32

約数和(自身を含む): 163931040

約数和(自身を除く): 91943480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 21683, 43366, 86732, 108415, 173464, 216830, 433660, 867320, 1799689, 3599378, 7198756, 8998445, 14397512, 17996890, 35993780, 71987560]

約数ペア:

[(1, 71987560), (2, 35993780), (4, 17996890), (5, 14397512), (8, 8998445), (10, 7198756), (20, 3599378), (40, 1799689), (83, 867320), (166, 433660), (332, 216830), (415, 173464), (664, 108415), (830, 86732), (1660, 43366), (3320, 21683)]