81913080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16649}}^1$

素因数の和:16704

約数の個数: 64

約数和(自身を含む): 251748000

約数和(自身を除く): 169834920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4920, 16649, 33298, 49947, 66596, 83245, 99894, 133192, 166490, 199788, 249735, 332980, 399576, 499470, 665960, 682609, 998940, 1365218, 1997880, 2047827, 2730436, 3413045, 4095654, 5460872, 6826090, 8191308, 10239135, 13652180, 16382616, 20478270, 27304360, 40956540, 81913080]

約数ペア:

[(1, 81913080), (2, 40956540), (3, 27304360), (4, 20478270), (5, 16382616), (6, 13652180), (8, 10239135), (10, 8191308), (12, 6826090), (15, 5460872), (20, 4095654), (24, 3413045), (30, 2730436), (40, 2047827), (41, 1997880), (60, 1365218), (82, 998940), (120, 682609), (123, 665960), (164, 499470), (205, 399576), (246, 332980), (328, 249735), (410, 199788), (492, 166490), (615, 133192), (820, 99894), (984, 83245), (1230, 66596), (1640, 49947), (2460, 33298), (4920, 16649)]