20579850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 144

約数和(自身を含む): 60933600

約数和(自身を除く): 40353750

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 29, 30, 38, 45, 50, 57, 58, 75, 83, 87, 90, 95, 114, 145, 150, 166, 171, 174, 190, 225, 249, 261, 285, 290, 342, 415, 435, 450, 475, 498, 522, 551, 570, 725, 747, 830, 855, 870, 950, 1102, 1245, 1305, 1425, 1450, 1494, 1577, 1653, 1710, 2075, 2175, 2407, 2490, 2610, 2755, 2850, 3154, 3306, 3735, 4150, 4275, 4350, 4731, 4814, 4959, 5510, 6225, 6525, 7221, 7470, 7885, 8265, 8550, 9462, 9918, 12035, 12450, 13050, 13775, 14193, 14442, 15770, 16530, 18675, 21663, 23655, 24070, 24795, 27550, 28386, 36105, 37350, 39425, 41325, 43326, 45733, 47310, 49590, 60175, 70965, 72210, 78850, 82650, 91466, 108315, 118275, 120350, 123975, 137199, 141930, 180525, 216630, 228665, 236550, 247950, 274398, 354825, 361050, 411597, 457330, 541575, 685995, 709650, 823194, 1083150, 1143325, 1371990, 2057985, 2286650, 3429975, 4115970, 6859950, 10289925, 20579850]

約数ペア:

[(1, 20579850), (2, 10289925), (3, 6859950), (5, 4115970), (6, 3429975), (9, 2286650), (10, 2057985), (15, 1371990), (18, 1143325), (19, 1083150), (25, 823194), (29, 709650), (30, 685995), (38, 541575), (45, 457330), (50, 411597), (57, 361050), (58, 354825), (75, 274398), (83, 247950), (87, 236550), (90, 228665), (95, 216630), (114, 180525), (145, 141930), (150, 137199), (166, 123975), (171, 120350), (174, 118275), (190, 108315), (225, 91466), (249, 82650), (261, 78850), (285, 72210), (290, 70965), (342, 60175), (415, 49590), (435, 47310), (450, 45733), (475, 43326), (498, 41325), (522, 39425), (551, 37350), (570, 36105), (725, 28386), (747, 27550), (830, 24795), (855, 24070), (870, 23655), (950, 21663), (1102, 18675), (1245, 16530), (1305, 15770), (1425, 14442), (1450, 14193), (1494, 13775), (1577, 13050), (1653, 12450), (1710, 12035), (2075, 9918), (2175, 9462), (2407, 8550), (2490, 8265), (2610, 7885), (2755, 7470), (2850, 7221), (3154, 6525), (3306, 6225), (3735, 5510), (4150, 4959), (4275, 4814), (4350, 4731)]