2018678788

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{4871}}^1$

素因数の和:4961

約数の個数: 72

約数和(自身を含む): 4365857664

約数和(自身を除く): 2347178876

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 361, 532, 574, 722, 779, 1148, 1444, 1558, 2527, 3116, 4871, 5054, 5453, 9742, 10108, 10906, 14801, 19484, 21812, 29602, 34097, 59204, 68194, 92549, 103607, 136388, 185098, 199711, 207214, 370196, 399422, 414428, 647843, 798844, 1295686, 1397977, 1758431, 2591372, 2795954, 3516862, 3794509, 5591908, 7033724, 7589018, 12309017, 15178036, 24618034, 26561563, 49236068, 53123126, 72095671, 106246252, 144191342, 288382684, 504669697, 1009339394, 2018678788]

約数ペア:

[(1, 2018678788), (2, 1009339394), (4, 504669697), (7, 288382684), (14, 144191342), (19, 106246252), (28, 72095671), (38, 53123126), (41, 49236068), (76, 26561563), (82, 24618034), (133, 15178036), (164, 12309017), (266, 7589018), (287, 7033724), (361, 5591908), (532, 3794509), (574, 3516862), (722, 2795954), (779, 2591372), (1148, 1758431), (1444, 1397977), (1558, 1295686), (2527, 798844), (3116, 647843), (4871, 414428), (5054, 399422), (5453, 370196), (9742, 207214), (10108, 199711), (10906, 185098), (14801, 136388), (19484, 103607), (21812, 92549), (29602, 68194), (34097, 59204)]