251020672

素因数分解:

$2^7\times 7^1\times {\mathrm{281}}^1\times {\mathrm{997}}^1$

素因数の和:1299

約数の個数: 64

約数和(自身を含む): 574129440

約数和(自身を除く): 323108768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 281, 448, 562, 896, 997, 1124, 1967, 1994, 2248, 3934, 3988, 4496, 6979, 7868, 7976, 8992, 13958, 15736, 15952, 17984, 27916, 31472, 31904, 35968, 55832, 62944, 63808, 111664, 125888, 127616, 223328, 251776, 280157, 446656, 560314, 893312, 1120628, 1961099, 2241256, 3922198, 4482512, 7844396, 8965024, 15688792, 17930048, 31377584, 35860096, 62755168, 125510336, 251020672]

約数ペア:

[(1, 251020672), (2, 125510336), (4, 62755168), (7, 35860096), (8, 31377584), (14, 17930048), (16, 15688792), (28, 8965024), (32, 7844396), (56, 4482512), (64, 3922198), (112, 2241256), (128, 1961099), (224, 1120628), (281, 893312), (448, 560314), (562, 446656), (896, 280157), (997, 251776), (1124, 223328), (1967, 127616), (1994, 125888), (2248, 111664), (3934, 63808), (3988, 62944), (4496, 55832), (6979, 35968), (7868, 31904), (7976, 31472), (8992, 27916), (13958, 17984), (15736, 15952)]