18912530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2969}}^1$

素因数の和:3003

約数の個数: 48

約数和(自身を含む): 42661080

約数和(自身を除く): 23748550

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2969, 3185, 5938, 6370, 14845, 20783, 29690, 38597, 41566, 77194, 103915, 145481, 192985, 207830, 270179, 290962, 385970, 540358, 727405, 1350895, 1454810, 1891253, 2701790, 3782506, 9456265, 18912530]

約数ペア:

[(1, 18912530), (2, 9456265), (5, 3782506), (7, 2701790), (10, 1891253), (13, 1454810), (14, 1350895), (26, 727405), (35, 540358), (49, 385970), (65, 290962), (70, 270179), (91, 207830), (98, 192985), (130, 145481), (182, 103915), (245, 77194), (455, 41566), (490, 38597), (637, 29690), (910, 20783), (1274, 14845), (2969, 6370), (3185, 5938)]