15403720

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 36158400

約数和(自身を除く): 20754680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 61, 107, 118, 122, 214, 236, 244, 295, 305, 428, 472, 488, 535, 590, 610, 856, 1070, 1180, 1220, 2140, 2360, 2440, 3599, 4280, 6313, 6527, 7198, 12626, 13054, 14396, 17995, 25252, 26108, 28792, 31565, 32635, 35990, 50504, 52216, 63130, 65270, 71980, 126260, 130540, 143960, 252520, 261080, 385093, 770186, 1540372, 1925465, 3080744, 3850930, 7701860, 15403720]

約数ペア:

[(1, 15403720), (2, 7701860), (4, 3850930), (5, 3080744), (8, 1925465), (10, 1540372), (20, 770186), (40, 385093), (59, 261080), (61, 252520), (107, 143960), (118, 130540), (122, 126260), (214, 71980), (236, 65270), (244, 63130), (295, 52216), (305, 50504), (428, 35990), (472, 32635), (488, 31565), (535, 28792), (590, 26108), (610, 25252), (856, 17995), (1070, 14396), (1180, 13054), (1220, 12626), (2140, 7198), (2360, 6527), (2440, 6313), (3599, 4280)]