163913080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1123}}^1$

素因数の和:1264

約数の個数: 64

約数和(自身を含む): 382384800

約数和(自身を除く): 218471720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 89, 164, 178, 205, 328, 356, 410, 445, 712, 820, 890, 1123, 1640, 1780, 2246, 3560, 3649, 4492, 5615, 7298, 8984, 11230, 14596, 18245, 22460, 29192, 36490, 44920, 46043, 72980, 92086, 99947, 145960, 184172, 199894, 230215, 368344, 399788, 460430, 499735, 799576, 920860, 999470, 1841720, 1998940, 3997880, 4097827, 8195654, 16391308, 20489135, 32782616, 40978270, 81956540, 163913080]

約数ペア:

[(1, 163913080), (2, 81956540), (4, 40978270), (5, 32782616), (8, 20489135), (10, 16391308), (20, 8195654), (40, 4097827), (41, 3997880), (82, 1998940), (89, 1841720), (164, 999470), (178, 920860), (205, 799576), (328, 499735), (356, 460430), (410, 399788), (445, 368344), (712, 230215), (820, 199894), (890, 184172), (1123, 145960), (1640, 99947), (1780, 92086), (2246, 72980), (3560, 46043), (3649, 44920), (4492, 36490), (5615, 29192), (7298, 22460), (8984, 18245), (11230, 14596)]