227937580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1997}}^1$

素因数の和:2458

約数の個数: 48

約数和(自身を含む): 516922560

約数和(自身を除く): 288984980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 878, 1756, 1997, 2195, 3994, 4390, 5707, 7988, 8780, 9985, 11414, 19970, 22828, 25961, 28535, 39940, 51922, 57070, 103844, 114140, 129805, 259610, 519220, 876683, 1753366, 3506732, 4383415, 8766830, 11396879, 17533660, 22793758, 45587516, 56984395, 113968790, 227937580]

約数ペア:

[(1, 227937580), (2, 113968790), (4, 56984395), (5, 45587516), (10, 22793758), (13, 17533660), (20, 11396879), (26, 8766830), (52, 4383415), (65, 3506732), (130, 1753366), (260, 876683), (439, 519220), (878, 259610), (1756, 129805), (1997, 114140), (2195, 103844), (3994, 57070), (4390, 51922), (5707, 39940), (7988, 28535), (8780, 25961), (9985, 22828), (11414, 19970)]