18866670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:809

約数の個数: 64

約数和(自身を含む): 48591360

約数和(自身を除く): 29724690

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 37, 46, 69, 74, 111, 115, 138, 185, 222, 230, 345, 370, 555, 690, 739, 851, 1110, 1478, 1702, 2217, 2553, 3695, 4255, 4434, 5106, 7390, 8510, 11085, 12765, 16997, 22170, 25530, 27343, 33994, 50991, 54686, 82029, 84985, 101982, 136715, 164058, 169970, 254955, 273430, 410145, 509910, 628889, 820290, 1257778, 1886667, 3144445, 3773334, 6288890, 9433335, 18866670]

約数ペア:

[(1, 18866670), (2, 9433335), (3, 6288890), (5, 3773334), (6, 3144445), (10, 1886667), (15, 1257778), (23, 820290), (30, 628889), (37, 509910), (46, 410145), (69, 273430), (74, 254955), (111, 169970), (115, 164058), (138, 136715), (185, 101982), (222, 84985), (230, 82029), (345, 54686), (370, 50991), (555, 33994), (690, 27343), (739, 25530), (851, 22170), (1110, 16997), (1478, 12765), (1702, 11085), (2217, 8510), (2553, 7390), (3695, 5106), (4255, 4434)]