18715980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 37893300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 59, 60, 68, 85, 102, 118, 170, 177, 204, 236, 255, 295, 311, 340, 354, 510, 590, 622, 708, 885, 933, 1003, 1020, 1180, 1244, 1555, 1770, 1866, 2006, 3009, 3110, 3540, 3732, 4012, 4665, 5015, 5287, 6018, 6220, 9330, 10030, 10574, 12036, 15045, 15861, 18349, 18660, 20060, 21148, 26435, 30090, 31722, 36698, 52870, 55047, 60180, 63444, 73396, 79305, 91745, 105740, 110094, 158610, 183490, 220188, 275235, 311933, 317220, 366980, 550470, 623866, 935799, 1100940, 1247732, 1559665, 1871598, 3119330, 3743196, 4678995, 6238660, 9357990, 18715980]

約数ペア:

[(1, 18715980), (2, 9357990), (3, 6238660), (4, 4678995), (5, 3743196), (6, 3119330), (10, 1871598), (12, 1559665), (15, 1247732), (17, 1100940), (20, 935799), (30, 623866), (34, 550470), (51, 366980), (59, 317220), (60, 311933), (68, 275235), (85, 220188), (102, 183490), (118, 158610), (170, 110094), (177, 105740), (204, 91745), (236, 79305), (255, 73396), (295, 63444), (311, 60180), (340, 55047), (354, 52870), (510, 36698), (590, 31722), (622, 30090), (708, 26435), (885, 21148), (933, 20060), (1003, 18660), (1020, 18349), (1180, 15861), (1244, 15045), (1555, 12036), (1770, 10574), (1866, 10030), (2006, 9330), (3009, 6220), (3110, 6018), (3540, 5287), (3732, 5015), (4012, 4665)]