81340880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{44207}}^1$

素因数の和:44243

約数の個数: 40

約数和(自身を含む): 197344512

約数和(自身を除く): 116003632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 44207, 88414, 176828, 221035, 353656, 442070, 707312, 884140, 1016761, 1768280, 2033522, 3536560, 4067044, 5083805, 8134088, 10167610, 16268176, 20335220, 40670440, 81340880]

約数ペア:

[(1, 81340880), (2, 40670440), (4, 20335220), (5, 16268176), (8, 10167610), (10, 8134088), (16, 5083805), (20, 4067044), (23, 3536560), (40, 2033522), (46, 1768280), (80, 1016761), (92, 884140), (115, 707312), (184, 442070), (230, 353656), (368, 221035), (460, 176828), (920, 88414), (1840, 44207)]