20613420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{647}}^1$

素因数の和:724

約数の個数: 96

約数和(自身を含む): 65318400

約数和(自身を除く): 44704980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 59, 60, 90, 108, 118, 135, 177, 180, 236, 270, 295, 354, 531, 540, 590, 647, 708, 885, 1062, 1180, 1294, 1593, 1770, 1941, 2124, 2588, 2655, 3186, 3235, 3540, 3882, 5310, 5823, 6372, 6470, 7764, 7965, 9705, 10620, 11646, 12940, 15930, 17469, 19410, 23292, 29115, 31860, 34938, 38173, 38820, 58230, 69876, 76346, 87345, 114519, 116460, 152692, 174690, 190865, 229038, 343557, 349380, 381730, 458076, 572595, 687114, 763460, 1030671, 1145190, 1374228, 1717785, 2061342, 2290380, 3435570, 4122684, 5153355, 6871140, 10306710, 20613420]

約数ペア:

[(1, 20613420), (2, 10306710), (3, 6871140), (4, 5153355), (5, 4122684), (6, 3435570), (9, 2290380), (10, 2061342), (12, 1717785), (15, 1374228), (18, 1145190), (20, 1030671), (27, 763460), (30, 687114), (36, 572595), (45, 458076), (54, 381730), (59, 349380), (60, 343557), (90, 229038), (108, 190865), (118, 174690), (135, 152692), (177, 116460), (180, 114519), (236, 87345), (270, 76346), (295, 69876), (354, 58230), (531, 38820), (540, 38173), (590, 34938), (647, 31860), (708, 29115), (885, 23292), (1062, 19410), (1180, 17469), (1294, 15930), (1593, 12940), (1770, 11646), (1941, 10620), (2124, 9705), (2588, 7965), (2655, 7764), (3186, 6470), (3235, 6372), (3540, 5823), (3882, 5310)]