31289552

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 72673920

約数和(自身を除く): 41384368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 73, 86, 89, 112, 146, 172, 178, 292, 301, 344, 356, 511, 584, 602, 623, 688, 712, 1022, 1168, 1204, 1246, 1424, 2044, 2408, 2492, 3139, 3827, 4088, 4816, 4984, 6278, 6497, 7654, 8176, 9968, 12556, 12994, 15308, 21973, 25112, 25988, 26789, 30616, 43946, 45479, 50224, 51976, 53578, 61232, 87892, 90958, 103952, 107156, 175784, 181916, 214312, 279371, 351568, 363832, 428624, 558742, 727664, 1117484, 1955597, 2234968, 3911194, 4469936, 7822388, 15644776, 31289552]

約数ペア:

[(1, 31289552), (2, 15644776), (4, 7822388), (7, 4469936), (8, 3911194), (14, 2234968), (16, 1955597), (28, 1117484), (43, 727664), (56, 558742), (73, 428624), (86, 363832), (89, 351568), (112, 279371), (146, 214312), (172, 181916), (178, 175784), (292, 107156), (301, 103952), (344, 90958), (356, 87892), (511, 61232), (584, 53578), (602, 51976), (623, 50224), (688, 45479), (712, 43946), (1022, 30616), (1168, 26789), (1204, 25988), (1246, 25112), (1424, 21973), (2044, 15308), (2408, 12994), (2492, 12556), (3139, 9968), (3827, 8176), (4088, 7654), (4816, 6497), (4984, 6278)]