328547175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{79}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 608651520

約数和(自身を除く): 280104345

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 79, 165, 213, 237, 275, 355, 395, 781, 825, 869, 1065, 1185, 1775, 1975, 2343, 2607, 3905, 4345, 5041, 5325, 5609, 5925, 11715, 13035, 15123, 16827, 19525, 21725, 25205, 28045, 55451, 58575, 61699, 65175, 75615, 84135, 126025, 140225, 166353, 185097, 277255, 308495, 378075, 398239, 420675, 831765, 925485, 1194717, 1386275, 1542475, 1991195, 4158825, 4380629, 4627425, 5973585, 9955975, 13141887, 21903145, 29867925, 65709435, 109515725, 328547175]

約数ペア:

[(1, 328547175), (3, 109515725), (5, 65709435), (11, 29867925), (15, 21903145), (25, 13141887), (33, 9955975), (55, 5973585), (71, 4627425), (75, 4380629), (79, 4158825), (165, 1991195), (213, 1542475), (237, 1386275), (275, 1194717), (355, 925485), (395, 831765), (781, 420675), (825, 398239), (869, 378075), (1065, 308495), (1185, 277255), (1775, 185097), (1975, 166353), (2343, 140225), (2607, 126025), (3905, 84135), (4345, 75615), (5041, 65175), (5325, 61699), (5609, 58575), (5925, 55451), (11715, 28045), (13035, 25205), (15123, 21725), (16827, 19525)]