223205780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{541}}^1$

素因数の和:985

約数の個数: 72

約数和(自身を含む): 547565256

約数和(自身を除く): 324359476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 421, 490, 541, 842, 980, 1082, 1684, 2105, 2164, 2705, 2947, 3787, 4210, 5410, 5894, 7574, 8420, 10820, 11788, 14735, 15148, 18935, 20629, 26509, 29470, 37870, 41258, 53018, 58940, 75740, 82516, 103145, 106036, 132545, 206290, 227761, 265090, 412580, 455522, 530180, 911044, 1138805, 1594327, 2277610, 3188654, 4555220, 6377308, 7971635, 11160289, 15943270, 22320578, 31886540, 44641156, 55801445, 111602890, 223205780]

約数ペア:

[(1, 223205780), (2, 111602890), (4, 55801445), (5, 44641156), (7, 31886540), (10, 22320578), (14, 15943270), (20, 11160289), (28, 7971635), (35, 6377308), (49, 4555220), (70, 3188654), (98, 2277610), (140, 1594327), (196, 1138805), (245, 911044), (421, 530180), (490, 455522), (541, 412580), (842, 265090), (980, 227761), (1082, 206290), (1684, 132545), (2105, 106036), (2164, 103145), (2705, 82516), (2947, 75740), (3787, 58940), (4210, 53018), (5410, 41258), (5894, 37870), (7574, 29470), (8420, 26509), (10820, 20629), (11788, 18935), (14735, 15148)]