18939930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{151}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 47409408

約数和(自身を除く): 28469478

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 111, 113, 151, 185, 222, 226, 302, 339, 370, 453, 555, 565, 678, 755, 906, 1110, 1130, 1510, 1695, 2265, 3390, 4181, 4530, 5587, 8362, 11174, 12543, 16761, 17063, 20905, 25086, 27935, 33522, 34126, 41810, 51189, 55870, 62715, 83805, 85315, 102378, 125430, 167610, 170630, 255945, 511890, 631331, 1262662, 1893993, 3156655, 3787986, 6313310, 9469965, 18939930]

約数ペア:

[(1, 18939930), (2, 9469965), (3, 6313310), (5, 3787986), (6, 3156655), (10, 1893993), (15, 1262662), (30, 631331), (37, 511890), (74, 255945), (111, 170630), (113, 167610), (151, 125430), (185, 102378), (222, 85315), (226, 83805), (302, 62715), (339, 55870), (370, 51189), (453, 41810), (555, 34126), (565, 33522), (678, 27935), (755, 25086), (906, 20905), (1110, 17063), (1130, 16761), (1510, 12543), (1695, 11174), (2265, 8362), (3390, 5587), (4181, 4530)]