18961360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{743}}^1$

素因数の和:796

約数の個数: 80

約数和(自身を含む): 49818240

約数和(自身を除く): 30856880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 743, 880, 1160, 1276, 1486, 1595, 2320, 2552, 2972, 3190, 3715, 5104, 5944, 6380, 7430, 8173, 11888, 12760, 14860, 16346, 21547, 25520, 29720, 32692, 40865, 43094, 59440, 65384, 81730, 86188, 107735, 130768, 163460, 172376, 215470, 237017, 326920, 344752, 430940, 474034, 653840, 861880, 948068, 1185085, 1723760, 1896136, 2370170, 3792272, 4740340, 9480680, 18961360]

約数ペア:

[(1, 18961360), (2, 9480680), (4, 4740340), (5, 3792272), (8, 2370170), (10, 1896136), (11, 1723760), (16, 1185085), (20, 948068), (22, 861880), (29, 653840), (40, 474034), (44, 430940), (55, 344752), (58, 326920), (80, 237017), (88, 215470), (110, 172376), (116, 163460), (145, 130768), (176, 107735), (220, 86188), (232, 81730), (290, 65384), (319, 59440), (440, 43094), (464, 40865), (580, 32692), (638, 29720), (743, 25520), (880, 21547), (1160, 16346), (1276, 14860), (1486, 12760), (1595, 11888), (2320, 8173), (2552, 7430), (2972, 6380), (3190, 5944), (3715, 5104)]