20387160

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:502

約数の個数: 128

約数和(自身を含む): 69696000

約数和(自身を除く): 49308840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 43, 45, 54, 60, 72, 86, 90, 108, 120, 129, 135, 172, 180, 215, 216, 258, 270, 344, 360, 387, 430, 439, 516, 540, 645, 774, 860, 878, 1032, 1080, 1161, 1290, 1317, 1548, 1720, 1756, 1935, 2195, 2322, 2580, 2634, 3096, 3512, 3870, 3951, 4390, 4644, 5160, 5268, 5805, 6585, 7740, 7902, 8780, 9288, 10536, 11610, 11853, 13170, 15480, 15804, 17560, 18877, 19755, 23220, 23706, 26340, 31608, 37754, 39510, 46440, 47412, 52680, 56631, 59265, 75508, 79020, 94385, 94824, 113262, 118530, 151016, 158040, 169893, 188770, 226524, 237060, 283155, 339786, 377540, 453048, 474120, 509679, 566310, 679572, 755080, 849465, 1019358, 1132620, 1359144, 1698930, 2038716, 2265240, 2548395, 3397860, 4077432, 5096790, 6795720, 10193580, 20387160]

約数ペア:

[(1, 20387160), (2, 10193580), (3, 6795720), (4, 5096790), (5, 4077432), (6, 3397860), (8, 2548395), (9, 2265240), (10, 2038716), (12, 1698930), (15, 1359144), (18, 1132620), (20, 1019358), (24, 849465), (27, 755080), (30, 679572), (36, 566310), (40, 509679), (43, 474120), (45, 453048), (54, 377540), (60, 339786), (72, 283155), (86, 237060), (90, 226524), (108, 188770), (120, 169893), (129, 158040), (135, 151016), (172, 118530), (180, 113262), (215, 94824), (216, 94385), (258, 79020), (270, 75508), (344, 59265), (360, 56631), (387, 52680), (430, 47412), (439, 46440), (516, 39510), (540, 37754), (645, 31608), (774, 26340), (860, 23706), (878, 23220), (1032, 19755), (1080, 18877), (1161, 17560), (1290, 15804), (1317, 15480), (1548, 13170), (1720, 11853), (1756, 11610), (1935, 10536), (2195, 9288), (2322, 8780), (2580, 7902), (2634, 7740), (3096, 6585), (3512, 5805), (3870, 5268), (3951, 5160), (4390, 4644)]