19996740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1949}}^1$

素因数の和:1986

約数の個数: 96

約数和(自身を含む): 65520000

約数和(自身を除く): 45523260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 1949, 2052, 2565, 3420, 3898, 5130, 5847, 7796, 9745, 10260, 11694, 17541, 19490, 23388, 29235, 35082, 37031, 38980, 52623, 58470, 70164, 74062, 87705, 105246, 111093, 116940, 148124, 175410, 185155, 210492, 222186, 263115, 333279, 350820, 370310, 444372, 526230, 555465, 666558, 740620, 999837, 1052460, 1110930, 1333116, 1666395, 1999674, 2221860, 3332790, 3999348, 4999185, 6665580, 9998370, 19996740]

約数ペア:

[(1, 19996740), (2, 9998370), (3, 6665580), (4, 4999185), (5, 3999348), (6, 3332790), (9, 2221860), (10, 1999674), (12, 1666395), (15, 1333116), (18, 1110930), (19, 1052460), (20, 999837), (27, 740620), (30, 666558), (36, 555465), (38, 526230), (45, 444372), (54, 370310), (57, 350820), (60, 333279), (76, 263115), (90, 222186), (95, 210492), (108, 185155), (114, 175410), (135, 148124), (171, 116940), (180, 111093), (190, 105246), (228, 87705), (270, 74062), (285, 70164), (342, 58470), (380, 52623), (513, 38980), (540, 37031), (570, 35082), (684, 29235), (855, 23388), (1026, 19490), (1140, 17541), (1710, 11694), (1949, 10260), (2052, 9745), (2565, 7796), (3420, 5847), (3898, 5130)]