20956496

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 27040432

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 31, 44, 46, 62, 88, 92, 124, 167, 176, 184, 248, 253, 334, 341, 368, 496, 506, 668, 682, 713, 1012, 1336, 1364, 1426, 1837, 2024, 2672, 2728, 2852, 3674, 3841, 4048, 5177, 5456, 5704, 7348, 7682, 7843, 10354, 11408, 14696, 15364, 15686, 20708, 29392, 30728, 31372, 41416, 42251, 56947, 61456, 62744, 82832, 84502, 113894, 119071, 125488, 169004, 227788, 238142, 338008, 455576, 476284, 676016, 911152, 952568, 1309781, 1905136, 2619562, 5239124, 10478248, 20956496]

約数ペア:

[(1, 20956496), (2, 10478248), (4, 5239124), (8, 2619562), (11, 1905136), (16, 1309781), (22, 952568), (23, 911152), (31, 676016), (44, 476284), (46, 455576), (62, 338008), (88, 238142), (92, 227788), (124, 169004), (167, 125488), (176, 119071), (184, 113894), (248, 84502), (253, 82832), (334, 62744), (341, 61456), (368, 56947), (496, 42251), (506, 41416), (668, 31372), (682, 30728), (713, 29392), (1012, 20708), (1336, 15686), (1364, 15364), (1426, 14696), (1837, 11408), (2024, 10354), (2672, 7843), (2728, 7682), (2852, 7348), (3674, 5704), (3841, 5456), (4048, 5177)]