40638208

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{12211}}^1$

素因数の和:12240

約数の個数: 36

約数和(自身を含む): 87364648

約数和(自身を除く): 46726440

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 12211, 24422, 48844, 97688, 158743, 195376, 317486, 390752, 634972, 781504, 1269944, 1563008, 2539888, 3126016, 5079776, 10159552, 20319104, 40638208]

約数ペア:

[(1, 40638208), (2, 20319104), (4, 10159552), (8, 5079776), (13, 3126016), (16, 2539888), (26, 1563008), (32, 1269944), (52, 781504), (64, 634972), (104, 390752), (128, 317486), (208, 195376), (256, 158743), (416, 97688), (832, 48844), (1664, 24422), (3328, 12211)]