19963431930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{647953}}^1$

素因数の和:648055

約数の個数: 64

約数和(自身を含む): 52251010560

約数和(自身を除く): 32287578630

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 79, 130, 158, 195, 237, 390, 395, 474, 790, 1027, 1185, 2054, 2370, 3081, 5135, 6162, 10270, 15405, 30810, 647953, 1295906, 1943859, 3239765, 3887718, 6479530, 8423389, 9719295, 16846778, 19438590, 25270167, 42116945, 50540334, 51188287, 84233890, 102376574, 126350835, 153564861, 252701670, 255941435, 307129722, 511882870, 665447731, 767824305, 1330895462, 1535648610, 1996343193, 3327238655, 3992686386, 6654477310, 9981715965, 19963431930]

約数ペア:

[(1, 19963431930), (2, 9981715965), (3, 6654477310), (5, 3992686386), (6, 3327238655), (10, 1996343193), (13, 1535648610), (15, 1330895462), (26, 767824305), (30, 665447731), (39, 511882870), (65, 307129722), (78, 255941435), (79, 252701670), (130, 153564861), (158, 126350835), (195, 102376574), (237, 84233890), (390, 51188287), (395, 50540334), (474, 42116945), (790, 25270167), (1027, 19438590), (1185, 16846778), (2054, 9719295), (2370, 8423389), (3081, 6479530), (5135, 3887718), (6162, 3239765), (10270, 1943859), (15405, 1295906), (30810, 647953)]