31586816

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 70709760

約数和(自身を除く): 39122944

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 128, 136, 152, 191, 256, 272, 304, 323, 382, 512, 544, 608, 646, 764, 1088, 1216, 1292, 1528, 2176, 2432, 2584, 3056, 3247, 3629, 4352, 4864, 5168, 6112, 6494, 7258, 8704, 9728, 10336, 12224, 12988, 14516, 20672, 24448, 25976, 29032, 41344, 48896, 51952, 58064, 61693, 82688, 97792, 103904, 116128, 123386, 165376, 207808, 232256, 246772, 415616, 464512, 493544, 831232, 929024, 987088, 1662464, 1858048, 1974176, 3948352, 7896704, 15793408, 31586816]

約数ペア:

[(1, 31586816), (2, 15793408), (4, 7896704), (8, 3948352), (16, 1974176), (17, 1858048), (19, 1662464), (32, 987088), (34, 929024), (38, 831232), (64, 493544), (68, 464512), (76, 415616), (128, 246772), (136, 232256), (152, 207808), (191, 165376), (256, 123386), (272, 116128), (304, 103904), (323, 97792), (382, 82688), (512, 61693), (544, 58064), (608, 51952), (646, 48896), (764, 41344), (1088, 29032), (1216, 25976), (1292, 24448), (1528, 20672), (2176, 14516), (2432, 12988), (2584, 12224), (3056, 10336), (3247, 9728), (3629, 8704), (4352, 7258), (4864, 6494), (5168, 6112)]