20557620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6011}}^1$

素因数の和:6045

約数の個数: 72

約数和(自身を含む): 65651040

約数和(自身を除く): 45093420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6011, 12022, 18033, 24044, 30055, 36066, 54099, 60110, 72132, 90165, 108198, 114209, 120220, 180330, 216396, 228418, 270495, 342627, 360660, 456836, 540990, 571045, 685254, 1027881, 1081980, 1142090, 1370508, 1713135, 2055762, 2284180, 3426270, 4111524, 5139405, 6852540, 10278810, 20557620]

約数ペア:

[(1, 20557620), (2, 10278810), (3, 6852540), (4, 5139405), (5, 4111524), (6, 3426270), (9, 2284180), (10, 2055762), (12, 1713135), (15, 1370508), (18, 1142090), (19, 1081980), (20, 1027881), (30, 685254), (36, 571045), (38, 540990), (45, 456836), (57, 360660), (60, 342627), (76, 270495), (90, 228418), (95, 216396), (114, 180330), (171, 120220), (180, 114209), (190, 108198), (228, 90165), (285, 72132), (342, 60110), (380, 54099), (570, 36066), (684, 30055), (855, 24044), (1140, 18033), (1710, 12022), (3420, 6011)]