245640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:126

約数の個数: 64

約数和(自身を含む): 777600

約数和(自身を除く): 531960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 89, 92, 115, 120, 138, 178, 184, 230, 267, 276, 345, 356, 445, 460, 534, 552, 690, 712, 890, 920, 1068, 1335, 1380, 1780, 2047, 2136, 2670, 2760, 3560, 4094, 5340, 6141, 8188, 10235, 10680, 12282, 16376, 20470, 24564, 30705, 40940, 49128, 61410, 81880, 122820, 245640]

約数ペア:

[(1, 245640), (2, 122820), (3, 81880), (4, 61410), (5, 49128), (6, 40940), (8, 30705), (10, 24564), (12, 20470), (15, 16376), (20, 12282), (23, 10680), (24, 10235), (30, 8188), (40, 6141), (46, 5340), (60, 4094), (69, 3560), (89, 2760), (92, 2670), (115, 2136), (120, 2047), (138, 1780), (178, 1380), (184, 1335), (230, 1068), (267, 920), (276, 890), (345, 712), (356, 690), (445, 552), (460, 534)]