19506240

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:557

約数の個数: 168

約数和(自身を含む): 72393048

約数和(自身を除く): 52886808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 360, 390, 416, 468, 480, 520, 521, 576, 585, 624, 720, 780, 832, 936, 960, 1040, 1042, 1170, 1248, 1440, 1560, 1563, 1872, 2080, 2084, 2340, 2496, 2605, 2880, 3120, 3126, 3744, 4160, 4168, 4680, 4689, 5210, 6240, 6252, 6773, 7488, 7815, 8336, 9360, 9378, 10420, 12480, 12504, 13546, 15630, 16672, 18720, 18756, 20319, 20840, 23445, 25008, 27092, 31260, 33344, 33865, 37440, 37512, 40638, 41680, 46890, 50016, 54184, 60957, 62520, 67730, 75024, 81276, 83360, 93780, 100032, 101595, 108368, 121914, 125040, 135460, 150048, 162552, 166720, 187560, 203190, 216736, 243828, 250080, 270920, 300096, 304785, 325104, 375120, 406380, 433472, 487656, 500160, 541840, 609570, 650208, 750240, 812760, 975312, 1083680, 1219140, 1300416, 1500480, 1625520, 1950624, 2167360, 2438280, 3251040, 3901248, 4876560, 6502080, 9753120, 19506240]

約数ペア:

[(1, 19506240), (2, 9753120), (3, 6502080), (4, 4876560), (5, 3901248), (6, 3251040), (8, 2438280), (9, 2167360), (10, 1950624), (12, 1625520), (13, 1500480), (15, 1300416), (16, 1219140), (18, 1083680), (20, 975312), (24, 812760), (26, 750240), (30, 650208), (32, 609570), (36, 541840), (39, 500160), (40, 487656), (45, 433472), (48, 406380), (52, 375120), (60, 325104), (64, 304785), (65, 300096), (72, 270920), (78, 250080), (80, 243828), (90, 216736), (96, 203190), (104, 187560), (117, 166720), (120, 162552), (130, 150048), (144, 135460), (156, 125040), (160, 121914), (180, 108368), (192, 101595), (195, 100032), (208, 93780), (234, 83360), (240, 81276), (260, 75024), (288, 67730), (312, 62520), (320, 60957), (360, 54184), (390, 50016), (416, 46890), (468, 41680), (480, 40638), (520, 37512), (521, 37440), (576, 33865), (585, 33344), (624, 31260), (720, 27092), (780, 25008), (832, 23445), (936, 20840), (960, 20319), (1040, 18756), (1042, 18720), (1170, 16672), (1248, 15630), (1440, 13546), (1560, 12504), (1563, 12480), (1872, 10420), (2080, 9378), (2084, 9360), (2340, 8336), (2496, 7815), (2605, 7488), (2880, 6773), (3120, 6252), (3126, 6240), (3744, 5210), (4160, 4689), (4168, 4680)]