19805220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5791}}^1$

素因数の和:5825

約数の個数: 72

約数和(自身を含む): 63248640

約数和(自身を除く): 43443420

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, 5791, 11582, 17373, 23164, 28955, 34746, 52119, 57910, 69492, 86865, 104238, 110029, 115820, 173730, 208476, 220058, 260595, 330087, 347460, 440116, 521190, 550145, 660174, 990261, 1042380, 1100290, 1320348, 1650435, 1980522, 2200580, 3300870, 3961044, 4951305, 6601740, 9902610, 19805220]

約数ペア:

[(1, 19805220), (2, 9902610), (3, 6601740), (4, 4951305), (5, 3961044), (6, 3300870), (9, 2200580), (10, 1980522), (12, 1650435), (15, 1320348), (18, 1100290), (19, 1042380), (20, 990261), (30, 660174), (36, 550145), (38, 521190), (45, 440116), (57, 347460), (60, 330087), (76, 260595), (90, 220058), (95, 208476), (114, 173730), (171, 115820), (180, 110029), (190, 104238), (228, 86865), (285, 69492), (342, 57910), (380, 52119), (570, 34746), (684, 28955), (855, 23164), (1140, 17373), (1710, 11582), (3420, 5791)]