213525520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 569963520

約数和(自身を除く): 356438000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 37, 40, 52, 62, 65, 74, 80, 104, 124, 130, 148, 155, 179, 185, 208, 248, 260, 296, 310, 358, 370, 403, 481, 496, 520, 592, 620, 716, 740, 806, 895, 962, 1040, 1147, 1240, 1432, 1480, 1612, 1790, 1924, 2015, 2294, 2327, 2405, 2480, 2864, 2960, 3224, 3580, 3848, 4030, 4588, 4654, 4810, 5549, 5735, 6448, 6623, 7160, 7696, 8060, 9176, 9308, 9620, 11098, 11470, 11635, 13246, 14320, 14911, 16120, 18352, 18616, 19240, 22196, 22940, 23270, 26492, 27745, 29822, 32240, 33115, 37232, 38480, 44392, 45880, 46540, 52984, 55490, 59644, 66230, 72137, 74555, 86099, 88784, 91760, 93080, 105968, 110980, 119288, 132460, 144274, 149110, 172198, 186160, 205313, 221960, 238576, 264920, 288548, 298220, 344396, 360685, 410626, 430495, 443920, 529840, 577096, 596440, 688792, 721370, 821252, 860990, 1026565, 1154192, 1192880, 1377584, 1442740, 1642504, 1721980, 2053130, 2669069, 2885480, 3285008, 3443960, 4106260, 5338138, 5770960, 6887920, 8212520, 10676276, 13345345, 16425040, 21352552, 26690690, 42705104, 53381380, 106762760, 213525520]

約数ペア:

[(1, 213525520), (2, 106762760), (4, 53381380), (5, 42705104), (8, 26690690), (10, 21352552), (13, 16425040), (16, 13345345), (20, 10676276), (26, 8212520), (31, 6887920), (37, 5770960), (40, 5338138), (52, 4106260), (62, 3443960), (65, 3285008), (74, 2885480), (80, 2669069), (104, 2053130), (124, 1721980), (130, 1642504), (148, 1442740), (155, 1377584), (179, 1192880), (185, 1154192), (208, 1026565), (248, 860990), (260, 821252), (296, 721370), (310, 688792), (358, 596440), (370, 577096), (403, 529840), (481, 443920), (496, 430495), (520, 410626), (592, 360685), (620, 344396), (716, 298220), (740, 288548), (806, 264920), (895, 238576), (962, 221960), (1040, 205313), (1147, 186160), (1240, 172198), (1432, 149110), (1480, 144274), (1612, 132460), (1790, 119288), (1924, 110980), (2015, 105968), (2294, 93080), (2327, 91760), (2405, 88784), (2480, 86099), (2864, 74555), (2960, 72137), (3224, 66230), (3580, 59644), (3848, 55490), (4030, 52984), (4588, 46540), (4654, 45880), (4810, 44392), (5549, 38480), (5735, 37232), (6448, 33115), (6623, 32240), (7160, 29822), (7696, 27745), (8060, 26492), (9176, 23270), (9308, 22940), (9620, 22196), (11098, 19240), (11470, 18616), (11635, 18352), (13246, 16120), (14320, 14911)]