20888906320

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2441}}^1\times {\mathrm{2609}}^1$

素因数の和:5104

約数の個数: 80

約数和(自身を含む): 49790719440

約数和(自身を除く): 28901813120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2441, 2609, 3280, 4882, 5218, 9764, 10436, 12205, 13045, 19528, 20872, 24410, 26090, 39056, 41744, 48820, 52180, 97640, 100081, 104360, 106969, 195280, 200162, 208720, 213938, 400324, 427876, 500405, 534845, 800648, 855752, 1000810, 1069690, 1601296, 1711504, 2001620, 2139380, 4003240, 4278760, 6368569, 8006480, 8557520, 12737138, 25474276, 31842845, 50948552, 63685690, 101897104, 127371380, 254742760, 261111329, 509485520, 522222658, 1044445316, 1305556645, 2088890632, 2611113290, 4177781264, 5222226580, 10444453160, 20888906320]

約数ペア:

[(1, 20888906320), (2, 10444453160), (4, 5222226580), (5, 4177781264), (8, 2611113290), (10, 2088890632), (16, 1305556645), (20, 1044445316), (40, 522222658), (41, 509485520), (80, 261111329), (82, 254742760), (164, 127371380), (205, 101897104), (328, 63685690), (410, 50948552), (656, 31842845), (820, 25474276), (1640, 12737138), (2441, 8557520), (2609, 8006480), (3280, 6368569), (4882, 4278760), (5218, 4003240), (9764, 2139380), (10436, 2001620), (12205, 1711504), (13045, 1601296), (19528, 1069690), (20872, 1000810), (24410, 855752), (26090, 800648), (39056, 534845), (41744, 500405), (48820, 427876), (52180, 400324), (97640, 213938), (100081, 208720), (104360, 200162), (106969, 195280)]