287880292

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 602598528

約数和(自身を除く): 314718236

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 137, 142, 151, 196, 274, 284, 302, 497, 548, 604, 959, 994, 1057, 1918, 1988, 2114, 3479, 3836, 4228, 6713, 6958, 7399, 9727, 10721, 13426, 13916, 14798, 19454, 20687, 21442, 26852, 29596, 38908, 41374, 42884, 68089, 75047, 82748, 136178, 144809, 150094, 272356, 289618, 300188, 476623, 525329, 579236, 953246, 1013663, 1050658, 1468777, 1906492, 2027326, 2101316, 2937554, 4054652, 5875108, 10281439, 20562878, 41125756, 71970073, 143940146, 287880292]

約数ペア:

[(1, 287880292), (2, 143940146), (4, 71970073), (7, 41125756), (14, 20562878), (28, 10281439), (49, 5875108), (71, 4054652), (98, 2937554), (137, 2101316), (142, 2027326), (151, 1906492), (196, 1468777), (274, 1050658), (284, 1013663), (302, 953246), (497, 579236), (548, 525329), (604, 476623), (959, 300188), (994, 289618), (1057, 272356), (1918, 150094), (1988, 144809), (2114, 136178), (3479, 82748), (3836, 75047), (4228, 68089), (6713, 42884), (6958, 41374), (7399, 38908), (9727, 29596), (10721, 26852), (13426, 21442), (13916, 20687), (14798, 19454)]