28334740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1049

約数の個数: 72

約数和(自身を含む): 71676360

約数和(自身を除く): 43341620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 997, 1015, 1421, 1994, 2030, 2842, 3988, 4060, 4985, 5684, 6979, 7105, 9970, 13958, 14210, 19940, 27916, 28420, 28913, 34895, 48853, 57826, 69790, 97706, 115652, 139580, 144565, 195412, 202391, 244265, 289130, 404782, 488530, 578260, 809564, 977060, 1011955, 1416737, 2023910, 2833474, 4047820, 5666948, 7083685, 14167370, 28334740]

約数ペア:

[(1, 28334740), (2, 14167370), (4, 7083685), (5, 5666948), (7, 4047820), (10, 2833474), (14, 2023910), (20, 1416737), (28, 1011955), (29, 977060), (35, 809564), (49, 578260), (58, 488530), (70, 404782), (98, 289130), (116, 244265), (140, 202391), (145, 195412), (196, 144565), (203, 139580), (245, 115652), (290, 97706), (406, 69790), (490, 57826), (580, 48853), (812, 34895), (980, 28913), (997, 28420), (1015, 27916), (1421, 19940), (1994, 14210), (2030, 13958), (2842, 9970), (3988, 7105), (4060, 6979), (4985, 5684)]