20432720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:169

約数の個数: 160

約数和(自身を含む): 61710336

約数和(自身を除く): 41277616

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 31, 35, 40, 44, 55, 56, 62, 70, 77, 80, 88, 107, 110, 112, 124, 140, 154, 155, 176, 214, 217, 220, 248, 280, 308, 310, 341, 385, 428, 434, 440, 496, 535, 560, 616, 620, 682, 749, 770, 856, 868, 880, 1070, 1085, 1177, 1232, 1240, 1364, 1498, 1540, 1705, 1712, 1736, 2140, 2170, 2354, 2387, 2480, 2728, 2996, 3080, 3317, 3410, 3472, 3745, 4280, 4340, 4708, 4774, 5456, 5885, 5992, 6160, 6634, 6820, 7490, 8239, 8560, 8680, 9416, 9548, 11770, 11935, 11984, 13268, 13640, 14980, 16478, 16585, 17360, 18832, 19096, 23219, 23540, 23870, 26536, 27280, 29960, 32956, 33170, 36487, 38192, 41195, 46438, 47080, 47740, 53072, 59920, 65912, 66340, 72974, 82390, 92876, 94160, 95480, 116095, 131824, 132680, 145948, 164780, 182435, 185752, 190960, 232190, 255409, 265360, 291896, 329560, 364870, 371504, 464380, 510818, 583792, 659120, 729740, 928760, 1021636, 1277045, 1459480, 1857520, 2043272, 2554090, 2918960, 4086544, 5108180, 10216360, 20432720]

約数ペア:

[(1, 20432720), (2, 10216360), (4, 5108180), (5, 4086544), (7, 2918960), (8, 2554090), (10, 2043272), (11, 1857520), (14, 1459480), (16, 1277045), (20, 1021636), (22, 928760), (28, 729740), (31, 659120), (35, 583792), (40, 510818), (44, 464380), (55, 371504), (56, 364870), (62, 329560), (70, 291896), (77, 265360), (80, 255409), (88, 232190), (107, 190960), (110, 185752), (112, 182435), (124, 164780), (140, 145948), (154, 132680), (155, 131824), (176, 116095), (214, 95480), (217, 94160), (220, 92876), (248, 82390), (280, 72974), (308, 66340), (310, 65912), (341, 59920), (385, 53072), (428, 47740), (434, 47080), (440, 46438), (496, 41195), (535, 38192), (560, 36487), (616, 33170), (620, 32956), (682, 29960), (749, 27280), (770, 26536), (856, 23870), (868, 23540), (880, 23219), (1070, 19096), (1085, 18832), (1177, 17360), (1232, 16585), (1240, 16478), (1364, 14980), (1498, 13640), (1540, 13268), (1705, 11984), (1712, 11935), (1736, 11770), (2140, 9548), (2170, 9416), (2354, 8680), (2387, 8560), (2480, 8239), (2728, 7490), (2996, 6820), (3080, 6634), (3317, 6160), (3410, 5992), (3472, 5885), (3745, 5456), (4280, 4774), (4340, 4708)]