11815720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2221}}^1$

素因数の和:2258

約数の個数: 64

約数和(自身を含む): 31996800

約数和(自身を除く): 20181080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2221, 2660, 4442, 5320, 8884, 11105, 15547, 17768, 22210, 31094, 42199, 44420, 62188, 77735, 84398, 88840, 124376, 155470, 168796, 210995, 295393, 310940, 337592, 421990, 590786, 621880, 843980, 1181572, 1476965, 1687960, 2363144, 2953930, 5907860, 11815720]

約数ペア:

[(1, 11815720), (2, 5907860), (4, 2953930), (5, 2363144), (7, 1687960), (8, 1476965), (10, 1181572), (14, 843980), (19, 621880), (20, 590786), (28, 421990), (35, 337592), (38, 310940), (40, 295393), (56, 210995), (70, 168796), (76, 155470), (95, 124376), (133, 88840), (140, 84398), (152, 77735), (190, 62188), (266, 44420), (280, 42199), (380, 31094), (532, 22210), (665, 17768), (760, 15547), (1064, 11105), (1330, 8884), (2221, 5320), (2660, 4442)]