87601220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1259}}^1$

素因数の和:1353

約数の個数: 72

約数和(自身を含む): 217183680

約数和(自身を除く): 129582460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 355, 490, 497, 710, 980, 994, 1259, 1420, 1988, 2485, 2518, 3479, 4970, 5036, 6295, 6958, 8813, 9940, 12590, 13916, 17395, 17626, 25180, 34790, 35252, 44065, 61691, 69580, 88130, 89389, 123382, 176260, 178778, 246764, 308455, 357556, 446945, 616910, 625723, 893890, 1233820, 1251446, 1787780, 2502892, 3128615, 4380061, 6257230, 8760122, 12514460, 17520244, 21900305, 43800610, 87601220]

約数ペア:

[(1, 87601220), (2, 43800610), (4, 21900305), (5, 17520244), (7, 12514460), (10, 8760122), (14, 6257230), (20, 4380061), (28, 3128615), (35, 2502892), (49, 1787780), (70, 1251446), (71, 1233820), (98, 893890), (140, 625723), (142, 616910), (196, 446945), (245, 357556), (284, 308455), (355, 246764), (490, 178778), (497, 176260), (710, 123382), (980, 89389), (994, 88130), (1259, 69580), (1420, 61691), (1988, 44065), (2485, 35252), (2518, 34790), (3479, 25180), (4970, 17626), (5036, 17395), (6295, 13916), (6958, 12590), (8813, 9940)]