28280700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{67}}^2$

素因数の和:161

約数の個数: 162

約数和(自身を含む): 102842376

約数和(自身を除く): 74561676

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 67, 70, 75, 84, 90, 100, 105, 126, 134, 140, 150, 175, 180, 201, 210, 225, 252, 268, 300, 315, 335, 350, 402, 420, 450, 469, 525, 603, 630, 670, 700, 804, 900, 938, 1005, 1050, 1206, 1260, 1340, 1407, 1575, 1675, 1876, 2010, 2100, 2345, 2412, 2814, 3015, 3150, 3350, 4020, 4221, 4489, 4690, 5025, 5628, 6030, 6300, 6700, 7035, 8442, 8978, 9380, 10050, 11725, 12060, 13467, 14070, 15075, 16884, 17956, 20100, 21105, 22445, 23450, 26934, 28140, 30150, 31423, 35175, 40401, 42210, 44890, 46900, 53868, 60300, 62846, 67335, 70350, 80802, 84420, 89780, 94269, 105525, 112225, 125692, 134670, 140700, 157115, 161604, 188538, 202005, 211050, 224450, 269340, 282807, 314230, 336675, 377076, 404010, 422100, 448900, 471345, 565614, 628460, 673350, 785575, 808020, 942690, 1010025, 1131228, 1346700, 1414035, 1571150, 1885380, 2020050, 2356725, 2828070, 3142300, 4040100, 4713450, 5656140, 7070175, 9426900, 14140350, 28280700]

約数ペア:

[(1, 28280700), (2, 14140350), (3, 9426900), (4, 7070175), (5, 5656140), (6, 4713450), (7, 4040100), (9, 3142300), (10, 2828070), (12, 2356725), (14, 2020050), (15, 1885380), (18, 1571150), (20, 1414035), (21, 1346700), (25, 1131228), (28, 1010025), (30, 942690), (35, 808020), (36, 785575), (42, 673350), (45, 628460), (50, 565614), (60, 471345), (63, 448900), (67, 422100), (70, 404010), (75, 377076), (84, 336675), (90, 314230), (100, 282807), (105, 269340), (126, 224450), (134, 211050), (140, 202005), (150, 188538), (175, 161604), (180, 157115), (201, 140700), (210, 134670), (225, 125692), (252, 112225), (268, 105525), (300, 94269), (315, 89780), (335, 84420), (350, 80802), (402, 70350), (420, 67335), (450, 62846), (469, 60300), (525, 53868), (603, 46900), (630, 44890), (670, 42210), (700, 40401), (804, 35175), (900, 31423), (938, 30150), (1005, 28140), (1050, 26934), (1206, 23450), (1260, 22445), (1340, 21105), (1407, 20100), (1575, 17956), (1675, 16884), (1876, 15075), (2010, 14070), (2100, 13467), (2345, 12060), (2412, 11725), (2814, 10050), (3015, 9380), (3150, 8978), (3350, 8442), (4020, 7035), (4221, 6700), (4489, 6300), (4690, 6030), (5025, 5628)]