28290480920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{7001}}^1$

素因数の和:7453

約数の個数: 128

約数和(自身を含む): 72344664000

約数和(自身を除く): 44054183080

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 409, 494, 520, 760, 818, 988, 1235, 1636, 1976, 2045, 2470, 3272, 4090, 4940, 5317, 7001, 7771, 8180, 9880, 10634, 14002, 15542, 16360, 21268, 26585, 28004, 31084, 35005, 38855, 42536, 53170, 56008, 62168, 70010, 77710, 91013, 101023, 106340, 133019, 140020, 155420, 182026, 202046, 212680, 266038, 280040, 310840, 364052, 404092, 455065, 505115, 532076, 665095, 728104, 808184, 910130, 1010230, 1064152, 1330190, 1729247, 1820260, 2020460, 2660380, 2863409, 3458494, 3640520, 4040920, 5320760, 5726818, 6916988, 8646235, 11453636, 13833976, 14317045, 17292470, 22907272, 28634090, 34584940, 37224317, 54404771, 57268180, 69169880, 74448634, 108809542, 114536360, 148897268, 186121585, 217619084, 272023855, 297794536, 372243170, 435238168, 544047710, 707262023, 744486340, 1088095420, 1414524046, 1488972680, 2176190840, 2829048092, 3536310115, 5658096184, 7072620230, 14145240460, 28290480920]

約数ペア:

[(1, 28290480920), (2, 14145240460), (4, 7072620230), (5, 5658096184), (8, 3536310115), (10, 2829048092), (13, 2176190840), (19, 1488972680), (20, 1414524046), (26, 1088095420), (38, 744486340), (40, 707262023), (52, 544047710), (65, 435238168), (76, 372243170), (95, 297794536), (104, 272023855), (130, 217619084), (152, 186121585), (190, 148897268), (247, 114536360), (260, 108809542), (380, 74448634), (409, 69169880), (494, 57268180), (520, 54404771), (760, 37224317), (818, 34584940), (988, 28634090), (1235, 22907272), (1636, 17292470), (1976, 14317045), (2045, 13833976), (2470, 11453636), (3272, 8646235), (4090, 6916988), (4940, 5726818), (5317, 5320760), (7001, 4040920), (7771, 3640520), (8180, 3458494), (9880, 2863409), (10634, 2660380), (14002, 2020460), (15542, 1820260), (16360, 1729247), (21268, 1330190), (26585, 1064152), (28004, 1010230), (31084, 910130), (35005, 808184), (38855, 728104), (42536, 665095), (53170, 532076), (56008, 505115), (62168, 455065), (70010, 404092), (77710, 364052), (91013, 310840), (101023, 280040), (106340, 266038), (133019, 212680), (140020, 202046), (155420, 182026)]