31315480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1153}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 81426240

約数和(自身を除く): 50110760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1153, 1358, 1940, 2306, 2716, 3395, 3880, 4612, 5432, 5765, 6790, 8071, 9224, 11530, 13580, 16142, 23060, 27160, 32284, 40355, 46120, 64568, 80710, 111841, 161420, 223682, 322840, 447364, 559205, 782887, 894728, 1118410, 1565774, 2236820, 3131548, 3914435, 4473640, 6263096, 7828870, 15657740, 31315480]

約数ペア:

[(1, 31315480), (2, 15657740), (4, 7828870), (5, 6263096), (7, 4473640), (8, 3914435), (10, 3131548), (14, 2236820), (20, 1565774), (28, 1118410), (35, 894728), (40, 782887), (56, 559205), (70, 447364), (97, 322840), (140, 223682), (194, 161420), (280, 111841), (388, 80710), (485, 64568), (679, 46120), (776, 40355), (970, 32284), (1153, 27160), (1358, 23060), (1940, 16142), (2306, 13580), (2716, 11530), (3395, 9224), (3880, 8071), (4612, 6790), (5432, 5765)]