18450440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 45048960

約数和(自身を除く): 26598520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 631, 680, 731, 860, 1262, 1462, 1720, 2524, 2924, 3155, 3655, 5048, 5848, 6310, 7310, 10727, 12620, 14620, 21454, 25240, 27133, 29240, 42908, 53635, 54266, 85816, 107270, 108532, 135665, 214540, 217064, 271330, 429080, 461261, 542660, 922522, 1085320, 1845044, 2306305, 3690088, 4612610, 9225220, 18450440]

約数ペア:

[(1, 18450440), (2, 9225220), (4, 4612610), (5, 3690088), (8, 2306305), (10, 1845044), (17, 1085320), (20, 922522), (34, 542660), (40, 461261), (43, 429080), (68, 271330), (85, 217064), (86, 214540), (136, 135665), (170, 108532), (172, 107270), (215, 85816), (340, 54266), (344, 53635), (430, 42908), (631, 29240), (680, 27133), (731, 25240), (860, 21454), (1262, 14620), (1462, 12620), (1720, 10727), (2524, 7310), (2924, 6310), (3155, 5848), (3655, 5048)]