81280020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{7019}}^1$

素因数の和:7224

約数の個数: 48

約数和(自身を含む): 228795840

約数和(自身を除く): 147515820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 193, 386, 579, 772, 965, 1158, 1930, 2316, 2895, 3860, 5790, 7019, 11580, 14038, 21057, 28076, 35095, 42114, 70190, 84228, 105285, 140380, 210570, 421140, 1354667, 2709334, 4064001, 5418668, 6773335, 8128002, 13546670, 16256004, 20320005, 27093340, 40640010, 81280020]

約数ペア:

[(1, 81280020), (2, 40640010), (3, 27093340), (4, 20320005), (5, 16256004), (6, 13546670), (10, 8128002), (12, 6773335), (15, 5418668), (20, 4064001), (30, 2709334), (60, 1354667), (193, 421140), (386, 210570), (579, 140380), (772, 105285), (965, 84228), (1158, 70190), (1930, 42114), (2316, 35095), (2895, 28076), (3860, 21057), (5790, 14038), (7019, 11580)]