20789728200

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{727}}^1\times {\mathrm{15887}}^1$

素因数の和:16636

約数の個数: 144

約数和(自身を含む): 69919274880

約数和(自身を除く): 49129546680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 727, 900, 1454, 1800, 2181, 2908, 3635, 4362, 5816, 6543, 7270, 8724, 10905, 13086, 14540, 15887, 17448, 18175, 21810, 26172, 29080, 31774, 32715, 36350, 43620, 47661, 52344, 54525, 63548, 65430, 72700, 79435, 87240, 95322, 109050, 127096, 130860, 142983, 145400, 158870, 163575, 190644, 218100, 238305, 261720, 285966, 317740, 327150, 381288, 397175, 436200, 476610, 571932, 635480, 654300, 714915, 794350, 953220, 1143864, 1191525, 1308600, 1429830, 1588700, 1906440, 2383050, 2859660, 3177400, 3574575, 4766100, 5719320, 7149150, 9532200, 11549849, 14298300, 23099698, 28596600, 34649547, 46199396, 57749245, 69299094, 92398792, 103948641, 115498490, 138598188, 173247735, 207897282, 230996980, 277196376, 288746225, 346495470, 415794564, 461993960, 519743205, 577492450, 692990940, 831589128, 866238675, 1039486410, 1154984900, 1385981880, 1732477350, 2078972820, 2309969800, 2598716025, 3464954700, 4157945640, 5197432050, 6929909400, 10394864100, 20789728200]

約数ペア:

[(1, 20789728200), (2, 10394864100), (3, 6929909400), (4, 5197432050), (5, 4157945640), (6, 3464954700), (8, 2598716025), (9, 2309969800), (10, 2078972820), (12, 1732477350), (15, 1385981880), (18, 1154984900), (20, 1039486410), (24, 866238675), (25, 831589128), (30, 692990940), (36, 577492450), (40, 519743205), (45, 461993960), (50, 415794564), (60, 346495470), (72, 288746225), (75, 277196376), (90, 230996980), (100, 207897282), (120, 173247735), (150, 138598188), (180, 115498490), (200, 103948641), (225, 92398792), (300, 69299094), (360, 57749245), (450, 46199396), (600, 34649547), (727, 28596600), (900, 23099698), (1454, 14298300), (1800, 11549849), (2181, 9532200), (2908, 7149150), (3635, 5719320), (4362, 4766100), (5816, 3574575), (6543, 3177400), (7270, 2859660), (8724, 2383050), (10905, 1906440), (13086, 1588700), (14540, 1429830), (15887, 1308600), (17448, 1191525), (18175, 1143864), (21810, 953220), (26172, 794350), (29080, 714915), (31774, 654300), (32715, 635480), (36350, 571932), (43620, 476610), (47661, 436200), (52344, 397175), (54525, 381288), (63548, 327150), (65430, 317740), (72700, 285966), (79435, 261720), (87240, 238305), (95322, 218100), (109050, 190644), (127096, 163575), (130860, 158870), (142983, 145400)]