21677600

素因数分解:

$2^5\times 5^2\times 7^3\times {\mathrm{79}}^1$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 62496000

約数和(自身を除く): 40818400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 79, 80, 98, 100, 112, 140, 158, 160, 175, 196, 200, 224, 245, 280, 316, 343, 350, 392, 395, 400, 490, 553, 560, 632, 686, 700, 784, 790, 800, 980, 1106, 1120, 1225, 1264, 1372, 1400, 1568, 1580, 1715, 1960, 1975, 2212, 2450, 2528, 2744, 2765, 2800, 3160, 3430, 3871, 3920, 3950, 4424, 4900, 5488, 5530, 5600, 6320, 6860, 7742, 7840, 7900, 8575, 8848, 9800, 10976, 11060, 12640, 13720, 13825, 15484, 15800, 17150, 17696, 19355, 19600, 22120, 27097, 27440, 27650, 30968, 31600, 34300, 38710, 39200, 44240, 54194, 54880, 55300, 61936, 63200, 68600, 77420, 88480, 96775, 108388, 110600, 123872, 135485, 137200, 154840, 193550, 216776, 221200, 270970, 274400, 309680, 387100, 433552, 442400, 541940, 619360, 677425, 774200, 867104, 1083880, 1354850, 1548400, 2167760, 2709700, 3096800, 4335520, 5419400, 10838800, 21677600]

約数ペア:

[(1, 21677600), (2, 10838800), (4, 5419400), (5, 4335520), (7, 3096800), (8, 2709700), (10, 2167760), (14, 1548400), (16, 1354850), (20, 1083880), (25, 867104), (28, 774200), (32, 677425), (35, 619360), (40, 541940), (49, 442400), (50, 433552), (56, 387100), (70, 309680), (79, 274400), (80, 270970), (98, 221200), (100, 216776), (112, 193550), (140, 154840), (158, 137200), (160, 135485), (175, 123872), (196, 110600), (200, 108388), (224, 96775), (245, 88480), (280, 77420), (316, 68600), (343, 63200), (350, 61936), (392, 55300), (395, 54880), (400, 54194), (490, 44240), (553, 39200), (560, 38710), (632, 34300), (686, 31600), (700, 30968), (784, 27650), (790, 27440), (800, 27097), (980, 22120), (1106, 19600), (1120, 19355), (1225, 17696), (1264, 17150), (1372, 15800), (1400, 15484), (1568, 13825), (1580, 13720), (1715, 12640), (1960, 11060), (1975, 10976), (2212, 9800), (2450, 8848), (2528, 8575), (2744, 7900), (2765, 7840), (2800, 7742), (3160, 6860), (3430, 6320), (3871, 5600), (3920, 5530), (3950, 5488), (4424, 4900)]