258236860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{6427}}^1$

素因数の和:6491

約数の個数: 72

約数和(自身を含む): 646322544

約数和(自身を除く): 388085684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 6427, 8036, 10045, 12854, 20090, 25708, 32135, 40180, 44989, 64270, 89978, 128540, 179956, 224945, 263507, 314923, 449890, 527014, 629846, 899780, 1054028, 1259692, 1317535, 1574615, 1844549, 2635070, 3149230, 3689098, 5270140, 6298460, 7378196, 9222745, 12911843, 18445490, 25823686, 36890980, 51647372, 64559215, 129118430, 258236860]

約数ペア:

[(1, 258236860), (2, 129118430), (4, 64559215), (5, 51647372), (7, 36890980), (10, 25823686), (14, 18445490), (20, 12911843), (28, 9222745), (35, 7378196), (41, 6298460), (49, 5270140), (70, 3689098), (82, 3149230), (98, 2635070), (140, 1844549), (164, 1574615), (196, 1317535), (205, 1259692), (245, 1054028), (287, 899780), (410, 629846), (490, 527014), (574, 449890), (820, 314923), (980, 263507), (1148, 224945), (1435, 179956), (2009, 128540), (2870, 89978), (4018, 64270), (5740, 44989), (6427, 40180), (8036, 32135), (10045, 25708), (12854, 20090)]