20746600

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 58841100

約数和(自身を除く): 38094500

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 49, 50, 56, 58, 70, 73, 98, 100, 116, 140, 145, 146, 175, 196, 200, 203, 232, 245, 280, 290, 292, 350, 365, 392, 406, 490, 511, 580, 584, 700, 725, 730, 812, 980, 1015, 1022, 1160, 1225, 1400, 1421, 1450, 1460, 1624, 1825, 1960, 2030, 2044, 2117, 2450, 2555, 2842, 2900, 2920, 3577, 3650, 4060, 4088, 4234, 4900, 5075, 5110, 5684, 5800, 7105, 7154, 7300, 8120, 8468, 9800, 10150, 10220, 10585, 11368, 12775, 14210, 14308, 14600, 14819, 16936, 17885, 20300, 20440, 21170, 25550, 28420, 28616, 29638, 35525, 35770, 40600, 42340, 51100, 52925, 56840, 59276, 71050, 71540, 74095, 84680, 89425, 102200, 103733, 105850, 118552, 142100, 143080, 148190, 178850, 207466, 211700, 284200, 296380, 357700, 370475, 414932, 423400, 518665, 592760, 715400, 740950, 829864, 1037330, 1481900, 2074660, 2593325, 2963800, 4149320, 5186650, 10373300, 20746600]

約数ペア:

[(1, 20746600), (2, 10373300), (4, 5186650), (5, 4149320), (7, 2963800), (8, 2593325), (10, 2074660), (14, 1481900), (20, 1037330), (25, 829864), (28, 740950), (29, 715400), (35, 592760), (40, 518665), (49, 423400), (50, 414932), (56, 370475), (58, 357700), (70, 296380), (73, 284200), (98, 211700), (100, 207466), (116, 178850), (140, 148190), (145, 143080), (146, 142100), (175, 118552), (196, 105850), (200, 103733), (203, 102200), (232, 89425), (245, 84680), (280, 74095), (290, 71540), (292, 71050), (350, 59276), (365, 56840), (392, 52925), (406, 51100), (490, 42340), (511, 40600), (580, 35770), (584, 35525), (700, 29638), (725, 28616), (730, 28420), (812, 25550), (980, 21170), (1015, 20440), (1022, 20300), (1160, 17885), (1225, 16936), (1400, 14819), (1421, 14600), (1450, 14308), (1460, 14210), (1624, 12775), (1825, 11368), (1960, 10585), (2030, 10220), (2044, 10150), (2117, 9800), (2450, 8468), (2555, 8120), (2842, 7300), (2900, 7154), (2920, 7105), (3577, 5800), (3650, 5684), (4060, 5110), (4088, 5075), (4234, 4900)]