520000961840

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1109}}^1\times {\mathrm{29453}}^1$

素因数の和:30774

約数の個数: 80

約数和(自身を含む): 1216214568000

約数和(自身を除く): 696213606160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1109, 1592, 1990, 2218, 3184, 3980, 4436, 5545, 7960, 8872, 11090, 15920, 17744, 22180, 29453, 44360, 58906, 88720, 117812, 147265, 220691, 235624, 294530, 441382, 471248, 589060, 882764, 1103455, 1178120, 1765528, 2206910, 2356240, 3531056, 4413820, 5861147, 8827640, 11722294, 17655280, 23444588, 29305735, 32663377, 46889176, 58611470, 65326754, 93778352, 117222940, 130653508, 163316885, 234445880, 261307016, 326633770, 468891760, 522614032, 653267540, 1306535080, 2613070160, 6500012023, 13000024046, 26000048092, 32500060115, 52000096184, 65000120230, 104000192368, 130000240460, 260000480920, 520000961840]

約数ペア:

[(1, 520000961840), (2, 260000480920), (4, 130000240460), (5, 104000192368), (8, 65000120230), (10, 52000096184), (16, 32500060115), (20, 26000048092), (40, 13000024046), (80, 6500012023), (199, 2613070160), (398, 1306535080), (796, 653267540), (995, 522614032), (1109, 468891760), (1592, 326633770), (1990, 261307016), (2218, 234445880), (3184, 163316885), (3980, 130653508), (4436, 117222940), (5545, 93778352), (7960, 65326754), (8872, 58611470), (11090, 46889176), (15920, 32663377), (17744, 29305735), (22180, 23444588), (29453, 17655280), (44360, 11722294), (58906, 8827640), (88720, 5861147), (117812, 4413820), (147265, 3531056), (220691, 2356240), (235624, 2206910), (294530, 1765528), (441382, 1178120), (471248, 1103455), (589060, 882764)]