393127980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{133717}}^1$

素因数の和:133743

約数の個数: 72

約数和(自身を含む): 1280483568

約数和(自身を除く): 887355588

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 133717, 267434, 401151, 534868, 668585, 802302, 936019, 1337170, 1604604, 1872038, 2005755, 2674340, 2808057, 3744076, 4011510, 4680095, 5616114, 6552133, 8023020, 9360190, 11232228, 13104266, 14040285, 18720380, 19656399, 26208532, 28080570, 32760665, 39312798, 56161140, 65521330, 78625596, 98281995, 131042660, 196563990, 393127980]

約数ペア:

[(1, 393127980), (2, 196563990), (3, 131042660), (4, 98281995), (5, 78625596), (6, 65521330), (7, 56161140), (10, 39312798), (12, 32760665), (14, 28080570), (15, 26208532), (20, 19656399), (21, 18720380), (28, 14040285), (30, 13104266), (35, 11232228), (42, 9360190), (49, 8023020), (60, 6552133), (70, 5616114), (84, 4680095), (98, 4011510), (105, 3744076), (140, 2808057), (147, 2674340), (196, 2005755), (210, 1872038), (245, 1604604), (294, 1337170), (420, 936019), (490, 802302), (588, 668585), (735, 534868), (980, 401151), (1470, 267434), (2940, 133717)]