311925520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{1087}}^1$

素因数の和:1328

約数の個数: 80

約数和(自身を含む): 772236288

約数和(自身を除く): 460310768

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 211, 272, 340, 422, 680, 844, 1055, 1087, 1360, 1688, 2110, 2174, 3376, 3587, 4220, 4348, 5435, 7174, 8440, 8696, 10870, 14348, 16880, 17392, 17935, 18479, 21740, 28696, 35870, 36958, 43480, 57392, 71740, 73916, 86960, 92395, 143480, 147832, 184790, 229357, 286960, 295664, 369580, 458714, 739160, 917428, 1146785, 1478320, 1834856, 2293570, 3669712, 3899069, 4587140, 7798138, 9174280, 15596276, 18348560, 19495345, 31192552, 38990690, 62385104, 77981380, 155962760, 311925520]

約数ペア:

[(1, 311925520), (2, 155962760), (4, 77981380), (5, 62385104), (8, 38990690), (10, 31192552), (16, 19495345), (17, 18348560), (20, 15596276), (34, 9174280), (40, 7798138), (68, 4587140), (80, 3899069), (85, 3669712), (136, 2293570), (170, 1834856), (211, 1478320), (272, 1146785), (340, 917428), (422, 739160), (680, 458714), (844, 369580), (1055, 295664), (1087, 286960), (1360, 229357), (1688, 184790), (2110, 147832), (2174, 143480), (3376, 92395), (3587, 86960), (4220, 73916), (4348, 71740), (5435, 57392), (7174, 43480), (8440, 36958), (8696, 35870), (10870, 28696), (14348, 21740), (16880, 18479), (17392, 17935)]