81516032

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:399

約数の個数: 80

約数和(自身を含む): 180686352

約数和(自身を除く): 99170320

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 37, 52, 64, 74, 104, 128, 148, 208, 256, 296, 331, 416, 481, 512, 592, 662, 832, 962, 1184, 1324, 1664, 1924, 2368, 2648, 3328, 3848, 4303, 4736, 5296, 6656, 7696, 8606, 9472, 10592, 12247, 15392, 17212, 18944, 21184, 24494, 30784, 34424, 42368, 48988, 61568, 68848, 84736, 97976, 123136, 137696, 159211, 169472, 195952, 246272, 275392, 318422, 391904, 550784, 636844, 783808, 1101568, 1273688, 1567616, 2203136, 2547376, 3135232, 5094752, 6270464, 10189504, 20379008, 40758016, 81516032]

約数ペア:

[(1, 81516032), (2, 40758016), (4, 20379008), (8, 10189504), (13, 6270464), (16, 5094752), (26, 3135232), (32, 2547376), (37, 2203136), (52, 1567616), (64, 1273688), (74, 1101568), (104, 783808), (128, 636844), (148, 550784), (208, 391904), (256, 318422), (296, 275392), (331, 246272), (416, 195952), (481, 169472), (512, 159211), (592, 137696), (662, 123136), (832, 97976), (962, 84736), (1184, 68848), (1324, 61568), (1664, 48988), (1924, 42368), (2368, 34424), (2648, 30784), (3328, 24494), (3848, 21184), (4303, 18944), (4736, 17212), (5296, 15392), (6656, 12247), (7696, 10592), (8606, 9472)]