28531800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1$

素因数の和:175

約数の個数: 216

約数和(自身を含む): 106126020

約数和(自身を除く): 77594220

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 50, 55, 60, 66, 72, 75, 88, 90, 99, 100, 110, 120, 121, 131, 132, 150, 165, 180, 198, 200, 220, 225, 242, 262, 264, 275, 300, 330, 360, 363, 393, 396, 440, 450, 484, 495, 524, 550, 600, 605, 655, 660, 726, 786, 792, 825, 900, 968, 990, 1048, 1089, 1100, 1179, 1210, 1310, 1320, 1441, 1452, 1572, 1650, 1800, 1815, 1965, 1980, 2178, 2200, 2358, 2420, 2475, 2620, 2882, 2904, 3025, 3144, 3275, 3300, 3630, 3930, 3960, 4323, 4356, 4716, 4840, 4950, 5240, 5445, 5764, 5895, 6050, 6550, 6600, 7205, 7260, 7860, 8646, 8712, 9075, 9432, 9825, 9900, 10890, 11528, 11790, 12100, 12969, 13100, 14410, 14520, 15720, 15851, 17292, 18150, 19650, 19800, 21615, 21780, 23580, 24200, 25938, 26200, 27225, 28820, 29475, 31702, 34584, 36025, 36300, 39300, 43230, 43560, 47160, 47553, 51876, 54450, 57640, 58950, 63404, 64845, 72050, 72600, 78600, 79255, 86460, 95106, 103752, 108075, 108900, 117900, 126808, 129690, 142659, 144100, 158510, 172920, 190212, 216150, 217800, 235800, 237765, 259380, 285318, 288200, 317020, 324225, 380424, 396275, 432300, 475530, 518760, 570636, 634040, 648450, 713295, 792550, 864600, 951060, 1141272, 1188825, 1296900, 1426590, 1585100, 1902120, 2377650, 2593800, 2853180, 3170200, 3566475, 4755300, 5706360, 7132950, 9510600, 14265900, 28531800]

約数ペア:

[(1, 28531800), (2, 14265900), (3, 9510600), (4, 7132950), (5, 5706360), (6, 4755300), (8, 3566475), (9, 3170200), (10, 2853180), (11, 2593800), (12, 2377650), (15, 1902120), (18, 1585100), (20, 1426590), (22, 1296900), (24, 1188825), (25, 1141272), (30, 951060), (33, 864600), (36, 792550), (40, 713295), (44, 648450), (45, 634040), (50, 570636), (55, 518760), (60, 475530), (66, 432300), (72, 396275), (75, 380424), (88, 324225), (90, 317020), (99, 288200), (100, 285318), (110, 259380), (120, 237765), (121, 235800), (131, 217800), (132, 216150), (150, 190212), (165, 172920), (180, 158510), (198, 144100), (200, 142659), (220, 129690), (225, 126808), (242, 117900), (262, 108900), (264, 108075), (275, 103752), (300, 95106), (330, 86460), (360, 79255), (363, 78600), (393, 72600), (396, 72050), (440, 64845), (450, 63404), (484, 58950), (495, 57640), (524, 54450), (550, 51876), (600, 47553), (605, 47160), (655, 43560), (660, 43230), (726, 39300), (786, 36300), (792, 36025), (825, 34584), (900, 31702), (968, 29475), (990, 28820), (1048, 27225), (1089, 26200), (1100, 25938), (1179, 24200), (1210, 23580), (1310, 21780), (1320, 21615), (1441, 19800), (1452, 19650), (1572, 18150), (1650, 17292), (1800, 15851), (1815, 15720), (1965, 14520), (1980, 14410), (2178, 13100), (2200, 12969), (2358, 12100), (2420, 11790), (2475, 11528), (2620, 10890), (2882, 9900), (2904, 9825), (3025, 9432), (3144, 9075), (3275, 8712), (3300, 8646), (3630, 7860), (3930, 7260), (3960, 7205), (4323, 6600), (4356, 6550), (4716, 6050), (4840, 5895), (4950, 5764), (5240, 5445)]