20820600

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:334

約数の個数: 144

約数和(自身を含む): 71814600

約数和(自身を除く): 50994000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 43, 45, 50, 60, 72, 75, 86, 90, 100, 120, 129, 150, 172, 180, 200, 215, 225, 258, 269, 300, 344, 360, 387, 430, 450, 516, 538, 600, 645, 774, 807, 860, 900, 1032, 1075, 1076, 1290, 1345, 1548, 1614, 1720, 1800, 1935, 2150, 2152, 2421, 2580, 2690, 3096, 3225, 3228, 3870, 4035, 4300, 4842, 5160, 5380, 6450, 6456, 6725, 7740, 8070, 8600, 9675, 9684, 10760, 11567, 12105, 12900, 13450, 15480, 16140, 19350, 19368, 20175, 23134, 24210, 25800, 26900, 32280, 34701, 38700, 40350, 46268, 48420, 53800, 57835, 60525, 69402, 77400, 80700, 92536, 96840, 104103, 115670, 121050, 138804, 161400, 173505, 208206, 231340, 242100, 277608, 289175, 347010, 416412, 462680, 484200, 520515, 578350, 694020, 832824, 867525, 1041030, 1156700, 1388040, 1735050, 2082060, 2313400, 2602575, 3470100, 4164120, 5205150, 6940200, 10410300, 20820600]

約数ペア:

[(1, 20820600), (2, 10410300), (3, 6940200), (4, 5205150), (5, 4164120), (6, 3470100), (8, 2602575), (9, 2313400), (10, 2082060), (12, 1735050), (15, 1388040), (18, 1156700), (20, 1041030), (24, 867525), (25, 832824), (30, 694020), (36, 578350), (40, 520515), (43, 484200), (45, 462680), (50, 416412), (60, 347010), (72, 289175), (75, 277608), (86, 242100), (90, 231340), (100, 208206), (120, 173505), (129, 161400), (150, 138804), (172, 121050), (180, 115670), (200, 104103), (215, 96840), (225, 92536), (258, 80700), (269, 77400), (300, 69402), (344, 60525), (360, 57835), (387, 53800), (430, 48420), (450, 46268), (516, 40350), (538, 38700), (600, 34701), (645, 32280), (774, 26900), (807, 25800), (860, 24210), (900, 23134), (1032, 20175), (1075, 19368), (1076, 19350), (1290, 16140), (1345, 15480), (1548, 13450), (1614, 12900), (1720, 12105), (1800, 11567), (1935, 10760), (2150, 9684), (2152, 9675), (2421, 8600), (2580, 8070), (2690, 7740), (3096, 6725), (3225, 6456), (3228, 6450), (3870, 5380), (4035, 5160), (4300, 4842)]