31156736

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 80

約数和(自身を含む): 69662208

約数和(自身を除く): 38505472

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 151, 208, 248, 256, 302, 403, 416, 496, 512, 604, 806, 832, 992, 1208, 1612, 1664, 1963, 1984, 2416, 3224, 3328, 3926, 3968, 4681, 4832, 6448, 6656, 7852, 7936, 9362, 9664, 12896, 15704, 15872, 18724, 19328, 25792, 31408, 37448, 38656, 51584, 60853, 62816, 74896, 77312, 103168, 121706, 125632, 149792, 206336, 243412, 251264, 299584, 486824, 502528, 599168, 973648, 1005056, 1198336, 1947296, 2396672, 3894592, 7789184, 15578368, 31156736]

約数ペア:

[(1, 31156736), (2, 15578368), (4, 7789184), (8, 3894592), (13, 2396672), (16, 1947296), (26, 1198336), (31, 1005056), (32, 973648), (52, 599168), (62, 502528), (64, 486824), (104, 299584), (124, 251264), (128, 243412), (151, 206336), (208, 149792), (248, 125632), (256, 121706), (302, 103168), (403, 77312), (416, 74896), (496, 62816), (512, 60853), (604, 51584), (806, 38656), (832, 37448), (992, 31408), (1208, 25792), (1612, 19328), (1664, 18724), (1963, 15872), (1984, 15704), (2416, 12896), (3224, 9664), (3328, 9362), (3926, 7936), (3968, 7852), (4681, 6656), (4832, 6448)]