16512020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 42336000

約数和(自身を除く): 25823980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 83, 98, 116, 140, 145, 166, 196, 203, 245, 290, 332, 343, 406, 415, 490, 580, 581, 686, 812, 830, 980, 1015, 1162, 1372, 1421, 1660, 1715, 2030, 2324, 2407, 2842, 2905, 3430, 4060, 4067, 4814, 5684, 5810, 6860, 7105, 8134, 9628, 9947, 11620, 12035, 14210, 16268, 16849, 19894, 20335, 24070, 28420, 28469, 33698, 39788, 40670, 48140, 49735, 56938, 67396, 81340, 84245, 99470, 113876, 117943, 142345, 168490, 198940, 235886, 284690, 336980, 471772, 569380, 589715, 825601, 1179430, 1651202, 2358860, 3302404, 4128005, 8256010, 16512020]

約数ペア:

[(1, 16512020), (2, 8256010), (4, 4128005), (5, 3302404), (7, 2358860), (10, 1651202), (14, 1179430), (20, 825601), (28, 589715), (29, 569380), (35, 471772), (49, 336980), (58, 284690), (70, 235886), (83, 198940), (98, 168490), (116, 142345), (140, 117943), (145, 113876), (166, 99470), (196, 84245), (203, 81340), (245, 67396), (290, 56938), (332, 49735), (343, 48140), (406, 40670), (415, 39788), (490, 33698), (580, 28469), (581, 28420), (686, 24070), (812, 20335), (830, 19894), (980, 16849), (1015, 16268), (1162, 14210), (1372, 12035), (1421, 11620), (1660, 9947), (1715, 9628), (2030, 8134), (2324, 7105), (2407, 6860), (2842, 5810), (2905, 5684), (3430, 4814), (4060, 4067)]