1620176240

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{953}}^1$

素因数の和:1314

約数の個数: 80

約数和(自身を含む): 3832790400

約数和(自身を除く): 2212614160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 269, 316, 395, 538, 632, 790, 953, 1076, 1264, 1345, 1580, 1906, 2152, 2690, 3160, 3812, 4304, 4765, 5380, 6320, 7624, 9530, 10760, 15248, 19060, 21251, 21520, 38120, 42502, 75287, 76240, 85004, 106255, 150574, 170008, 212510, 256357, 301148, 340016, 376435, 425020, 512714, 602296, 752870, 850040, 1025428, 1204592, 1281785, 1505740, 1700080, 2050856, 2563570, 3011480, 4101712, 5127140, 6022960, 10254280, 20252203, 20508560, 40504406, 81008812, 101261015, 162017624, 202522030, 324035248, 405044060, 810088120, 1620176240]

約数ペア:

[(1, 1620176240), (2, 810088120), (4, 405044060), (5, 324035248), (8, 202522030), (10, 162017624), (16, 101261015), (20, 81008812), (40, 40504406), (79, 20508560), (80, 20252203), (158, 10254280), (269, 6022960), (316, 5127140), (395, 4101712), (538, 3011480), (632, 2563570), (790, 2050856), (953, 1700080), (1076, 1505740), (1264, 1281785), (1345, 1204592), (1580, 1025428), (1906, 850040), (2152, 752870), (2690, 602296), (3160, 512714), (3812, 425020), (4304, 376435), (4765, 340016), (5380, 301148), (6320, 256357), (7624, 212510), (9530, 170008), (10760, 150574), (15248, 106255), (19060, 85004), (21251, 76240), (21520, 75287), (38120, 42502)]