646331360

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1987}}^1$

素因数の和:2128

約数の個数: 96

約数和(自身を含む): 1623162240

約数和(自身を除く): 976830880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 107, 152, 160, 190, 214, 304, 380, 428, 535, 608, 760, 856, 1070, 1520, 1712, 1987, 2033, 2140, 3040, 3424, 3974, 4066, 4280, 7948, 8132, 8560, 9935, 10165, 15896, 16264, 17120, 19870, 20330, 31792, 32528, 37753, 39740, 40660, 63584, 65056, 75506, 79480, 81320, 151012, 158960, 162640, 188765, 212609, 302024, 317920, 325280, 377530, 425218, 604048, 755060, 850436, 1063045, 1208096, 1510120, 1700872, 2126090, 3020240, 3401744, 4039571, 4252180, 6040480, 6803488, 8079142, 8504360, 16158284, 17008720, 20197855, 32316568, 34017440, 40395710, 64633136, 80791420, 129266272, 161582840, 323165680, 646331360]

約数ペア:

[(1, 646331360), (2, 323165680), (4, 161582840), (5, 129266272), (8, 80791420), (10, 64633136), (16, 40395710), (19, 34017440), (20, 32316568), (32, 20197855), (38, 17008720), (40, 16158284), (76, 8504360), (80, 8079142), (95, 6803488), (107, 6040480), (152, 4252180), (160, 4039571), (190, 3401744), (214, 3020240), (304, 2126090), (380, 1700872), (428, 1510120), (535, 1208096), (608, 1063045), (760, 850436), (856, 755060), (1070, 604048), (1520, 425218), (1712, 377530), (1987, 325280), (2033, 317920), (2140, 302024), (3040, 212609), (3424, 188765), (3974, 162640), (4066, 158960), (4280, 151012), (7948, 81320), (8132, 79480), (8560, 75506), (9935, 65056), (10165, 63584), (15896, 40660), (16264, 39740), (17120, 37753), (19870, 32528), (20330, 31792)]