21625760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:346

約数の個数: 96

約数和(自身を含む): 56709072

約数和(自身を除く): 35083312

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 281, 296, 370, 416, 481, 520, 562, 592, 740, 962, 1040, 1124, 1184, 1405, 1480, 1924, 2080, 2248, 2405, 2810, 2960, 3653, 3848, 4496, 4810, 5620, 5920, 7306, 7696, 8992, 9620, 10397, 11240, 14612, 15392, 18265, 19240, 20794, 22480, 29224, 36530, 38480, 41588, 44960, 51985, 58448, 73060, 76960, 83176, 103970, 116896, 135161, 146120, 166352, 207940, 270322, 292240, 332704, 415880, 540644, 584480, 675805, 831760, 1081288, 1351610, 1663520, 2162576, 2703220, 4325152, 5406440, 10812880, 21625760]

約数ペア:

[(1, 21625760), (2, 10812880), (4, 5406440), (5, 4325152), (8, 2703220), (10, 2162576), (13, 1663520), (16, 1351610), (20, 1081288), (26, 831760), (32, 675805), (37, 584480), (40, 540644), (52, 415880), (65, 332704), (74, 292240), (80, 270322), (104, 207940), (130, 166352), (148, 146120), (160, 135161), (185, 116896), (208, 103970), (260, 83176), (281, 76960), (296, 73060), (370, 58448), (416, 51985), (481, 44960), (520, 41588), (562, 38480), (592, 36530), (740, 29224), (962, 22480), (1040, 20794), (1124, 19240), (1184, 18265), (1405, 15392), (1480, 14612), (1924, 11240), (2080, 10397), (2248, 9620), (2405, 8992), (2810, 7696), (2960, 7306), (3653, 5920), (3848, 5620), (4496, 4810)]