21666400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:153

約数の個数: 144

約数和(自身を含む): 62433504

約数和(自身を除く): 40767104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 53, 56, 70, 73, 80, 100, 106, 112, 140, 146, 160, 175, 200, 212, 224, 265, 280, 292, 350, 365, 371, 400, 424, 511, 530, 560, 584, 700, 730, 742, 800, 848, 1022, 1060, 1120, 1168, 1325, 1400, 1460, 1484, 1696, 1825, 1855, 2044, 2120, 2336, 2555, 2650, 2800, 2920, 2968, 3650, 3710, 3869, 4088, 4240, 5110, 5300, 5600, 5840, 5936, 7300, 7420, 7738, 8176, 8480, 9275, 10220, 10600, 11680, 11872, 12775, 14600, 14840, 15476, 16352, 18550, 19345, 20440, 21200, 25550, 27083, 29200, 29680, 30952, 37100, 38690, 40880, 42400, 51100, 54166, 58400, 59360, 61904, 74200, 77380, 81760, 96725, 102200, 108332, 123808, 135415, 148400, 154760, 193450, 204400, 216664, 270830, 296800, 309520, 386900, 408800, 433328, 541660, 619040, 677075, 773800, 866656, 1083320, 1354150, 1547600, 2166640, 2708300, 3095200, 4333280, 5416600, 10833200, 21666400]

約数ペア:

[(1, 21666400), (2, 10833200), (4, 5416600), (5, 4333280), (7, 3095200), (8, 2708300), (10, 2166640), (14, 1547600), (16, 1354150), (20, 1083320), (25, 866656), (28, 773800), (32, 677075), (35, 619040), (40, 541660), (50, 433328), (53, 408800), (56, 386900), (70, 309520), (73, 296800), (80, 270830), (100, 216664), (106, 204400), (112, 193450), (140, 154760), (146, 148400), (160, 135415), (175, 123808), (200, 108332), (212, 102200), (224, 96725), (265, 81760), (280, 77380), (292, 74200), (350, 61904), (365, 59360), (371, 58400), (400, 54166), (424, 51100), (511, 42400), (530, 40880), (560, 38690), (584, 37100), (700, 30952), (730, 29680), (742, 29200), (800, 27083), (848, 25550), (1022, 21200), (1060, 20440), (1120, 19345), (1168, 18550), (1325, 16352), (1400, 15476), (1460, 14840), (1484, 14600), (1696, 12775), (1825, 11872), (1855, 11680), (2044, 10600), (2120, 10220), (2336, 9275), (2555, 8480), (2650, 8176), (2800, 7738), (2920, 7420), (2968, 7300), (3650, 5936), (3710, 5840), (3869, 5600), (4088, 5300), (4240, 5110)]