31687552

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 68972400

約数和(自身を除く): 37284848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 137, 139, 208, 274, 278, 416, 548, 556, 832, 1096, 1112, 1664, 1781, 1807, 2192, 2224, 3562, 3614, 4384, 4448, 7124, 7228, 8768, 8896, 14248, 14456, 17536, 17792, 19043, 28496, 28912, 38086, 56992, 57824, 76172, 113984, 115648, 152344, 227968, 231296, 247559, 304688, 495118, 609376, 990236, 1218752, 1980472, 2437504, 3960944, 7921888, 15843776, 31687552]

約数ペア:

[(1, 31687552), (2, 15843776), (4, 7921888), (8, 3960944), (13, 2437504), (16, 1980472), (26, 1218752), (32, 990236), (52, 609376), (64, 495118), (104, 304688), (128, 247559), (137, 231296), (139, 227968), (208, 152344), (274, 115648), (278, 113984), (416, 76172), (548, 57824), (556, 56992), (832, 38086), (1096, 28912), (1112, 28496), (1664, 19043), (1781, 17792), (1807, 17536), (2192, 14456), (2224, 14248), (3562, 8896), (3614, 8768), (4384, 7228), (4448, 7124)]