397238940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{315269}}^1$

素因数の和:315291

約数の個数: 72

約数和(自身を含む): 1377099360

約数和(自身を除く): 979860420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 315269, 630538, 945807, 1261076, 1576345, 1891614, 2206883, 2837421, 3152690, 3783228, 4413766, 4729035, 5674842, 6305380, 6620649, 8827532, 9458070, 11034415, 11349684, 13241298, 14187105, 18916140, 19861947, 22068830, 26482596, 28374210, 33103245, 39723894, 44137660, 56748420, 66206490, 79447788, 99309735, 132412980, 198619470, 397238940]

約数ペア:

[(1, 397238940), (2, 198619470), (3, 132412980), (4, 99309735), (5, 79447788), (6, 66206490), (7, 56748420), (9, 44137660), (10, 39723894), (12, 33103245), (14, 28374210), (15, 26482596), (18, 22068830), (20, 19861947), (21, 18916140), (28, 14187105), (30, 13241298), (35, 11349684), (36, 11034415), (42, 9458070), (45, 8827532), (60, 6620649), (63, 6305380), (70, 5674842), (84, 4729035), (90, 4413766), (105, 3783228), (126, 3152690), (140, 2837421), (180, 2206883), (210, 1891614), (252, 1576345), (315, 1261076), (420, 945807), (630, 630538), (1260, 315269)]