20074489760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{13967}}^1$

素因数の和:14686

約数の個数: 96

約数和(自身を含む): 51151709952

約数和(自身を除く): 31077220192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 691, 1040, 1382, 2080, 2764, 3455, 5528, 6910, 8983, 11056, 13820, 13967, 17966, 22112, 27640, 27934, 35932, 44915, 55280, 55868, 69835, 71864, 89830, 110560, 111736, 139670, 143728, 179660, 181571, 223472, 279340, 287456, 359320, 363142, 446944, 558680, 718640, 726284, 907855, 1117360, 1437280, 1452568, 1815710, 2234720, 2905136, 3631420, 5810272, 7262840, 9651197, 14525680, 19302394, 29051360, 38604788, 48255985, 77209576, 96511970, 125465561, 154419152, 193023940, 250931122, 308838304, 386047880, 501862244, 627327805, 772095760, 1003724488, 1254655610, 1544191520, 2007448976, 2509311220, 4014897952, 5018622440, 10037244880, 20074489760]

約数ペア:

[(1, 20074489760), (2, 10037244880), (4, 5018622440), (5, 4014897952), (8, 2509311220), (10, 2007448976), (13, 1544191520), (16, 1254655610), (20, 1003724488), (26, 772095760), (32, 627327805), (40, 501862244), (52, 386047880), (65, 308838304), (80, 250931122), (104, 193023940), (130, 154419152), (160, 125465561), (208, 96511970), (260, 77209576), (416, 48255985), (520, 38604788), (691, 29051360), (1040, 19302394), (1382, 14525680), (2080, 9651197), (2764, 7262840), (3455, 5810272), (5528, 3631420), (6910, 2905136), (8983, 2234720), (11056, 1815710), (13820, 1452568), (13967, 1437280), (17966, 1117360), (22112, 907855), (27640, 726284), (27934, 718640), (35932, 558680), (44915, 446944), (55280, 363142), (55868, 359320), (69835, 287456), (71864, 279340), (89830, 223472), (110560, 181571), (111736, 179660), (139670, 143728)]