279790140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{666167}}^1$

素因数の和:666186

約数の個数: 48

約数和(自身を含む): 895329792

約数和(自身を除く): 615539652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 666167, 1332334, 1998501, 2664668, 3330835, 3997002, 4663169, 6661670, 7994004, 9326338, 9992505, 13323340, 13989507, 18652676, 19985010, 23315845, 27979014, 39970020, 46631690, 55958028, 69947535, 93263380, 139895070, 279790140]

約数ペア:

[(1, 279790140), (2, 139895070), (3, 93263380), (4, 69947535), (5, 55958028), (6, 46631690), (7, 39970020), (10, 27979014), (12, 23315845), (14, 19985010), (15, 18652676), (20, 13989507), (21, 13323340), (28, 9992505), (30, 9326338), (35, 7994004), (42, 6661670), (60, 4663169), (70, 3997002), (84, 3330835), (105, 2664668), (140, 1998501), (210, 1332334), (420, 666167)]