20974140

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{107}}^1$

素因数の和:150

約数の個数: 180

約数和(自身を含む): 72997848

約数和(自身を除く): 52023708

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 81, 90, 99, 107, 108, 110, 121, 132, 135, 162, 165, 180, 198, 214, 220, 242, 270, 297, 321, 324, 330, 363, 396, 405, 428, 484, 495, 535, 540, 594, 605, 642, 660, 726, 810, 891, 963, 990, 1070, 1089, 1177, 1188, 1210, 1284, 1452, 1485, 1605, 1620, 1782, 1815, 1926, 1980, 2140, 2178, 2354, 2420, 2889, 2970, 3210, 3267, 3531, 3564, 3630, 3852, 4356, 4455, 4708, 4815, 5445, 5778, 5885, 5940, 6420, 6534, 7062, 7260, 8667, 8910, 9630, 9801, 10593, 10890, 11556, 11770, 12947, 13068, 14124, 14445, 16335, 17334, 17655, 17820, 19260, 19602, 21186, 21780, 23540, 25894, 28890, 31779, 32670, 34668, 35310, 38841, 39204, 42372, 43335, 49005, 51788, 52965, 57780, 63558, 64735, 65340, 70620, 77682, 86670, 95337, 98010, 105930, 116523, 127116, 129470, 155364, 158895, 173340, 190674, 194205, 196020, 211860, 233046, 258940, 317790, 349569, 381348, 388410, 466092, 476685, 582615, 635580, 699138, 776820, 953370, 1048707, 1165230, 1398276, 1747845, 1906740, 2097414, 2330460, 3495690, 4194828, 5243535, 6991380, 10487070, 20974140]

約数ペア:

[(1, 20974140), (2, 10487070), (3, 6991380), (4, 5243535), (5, 4194828), (6, 3495690), (9, 2330460), (10, 2097414), (11, 1906740), (12, 1747845), (15, 1398276), (18, 1165230), (20, 1048707), (22, 953370), (27, 776820), (30, 699138), (33, 635580), (36, 582615), (44, 476685), (45, 466092), (54, 388410), (55, 381348), (60, 349569), (66, 317790), (81, 258940), (90, 233046), (99, 211860), (107, 196020), (108, 194205), (110, 190674), (121, 173340), (132, 158895), (135, 155364), (162, 129470), (165, 127116), (180, 116523), (198, 105930), (214, 98010), (220, 95337), (242, 86670), (270, 77682), (297, 70620), (321, 65340), (324, 64735), (330, 63558), (363, 57780), (396, 52965), (405, 51788), (428, 49005), (484, 43335), (495, 42372), (535, 39204), (540, 38841), (594, 35310), (605, 34668), (642, 32670), (660, 31779), (726, 28890), (810, 25894), (891, 23540), (963, 21780), (990, 21186), (1070, 19602), (1089, 19260), (1177, 17820), (1188, 17655), (1210, 17334), (1284, 16335), (1452, 14445), (1485, 14124), (1605, 13068), (1620, 12947), (1782, 11770), (1815, 11556), (1926, 10890), (1980, 10593), (2140, 9801), (2178, 9630), (2354, 8910), (2420, 8667), (2889, 7260), (2970, 7062), (3210, 6534), (3267, 6420), (3531, 5940), (3564, 5885), (3630, 5778), (3852, 5445), (4356, 4815), (4455, 4708)]