405784540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{14713}}^1$

素因数の和:14926

約数の個数: 48

約数和(自身を含む): 978892992

約数和(自身を除く): 573108452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 13790, 14713, 27580, 29426, 58852, 73565, 102991, 147130, 205982, 294260, 411964, 514955, 1029910, 2059820, 2898461, 5796922, 11593844, 14492305, 20289227, 28984610, 40578454, 57969220, 81156908, 101446135, 202892270, 405784540]

約数ペア:

[(1, 405784540), (2, 202892270), (4, 101446135), (5, 81156908), (7, 57969220), (10, 40578454), (14, 28984610), (20, 20289227), (28, 14492305), (35, 11593844), (70, 5796922), (140, 2898461), (197, 2059820), (394, 1029910), (788, 514955), (985, 411964), (1379, 294260), (1970, 205982), (2758, 147130), (3940, 102991), (5516, 73565), (6895, 58852), (13790, 29426), (14713, 27580)]