81490544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1481}}^1$

素因数の和:1689

約数の個数: 40

約数和(自身を含む): 167228880

約数和(自身を除く): 85738336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 181, 304, 362, 724, 1448, 1481, 2896, 2962, 3439, 5924, 6878, 11848, 13756, 23696, 27512, 28139, 55024, 56278, 112556, 225112, 268061, 450224, 536122, 1072244, 2144488, 4288976, 5093159, 10186318, 20372636, 40745272, 81490544]

約数ペア:

[(1, 81490544), (2, 40745272), (4, 20372636), (8, 10186318), (16, 5093159), (19, 4288976), (38, 2144488), (76, 1072244), (152, 536122), (181, 450224), (304, 268061), (362, 225112), (724, 112556), (1448, 56278), (1481, 55024), (2896, 28139), (2962, 27512), (3439, 23696), (5924, 13756), (6878, 11848)]