81223860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71249}}^1$

素因数の和:71280

約数の個数: 48

約数和(自身を含む): 239400000

約数和(自身を除く): 158176140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 71249, 142498, 213747, 284996, 356245, 427494, 712490, 854988, 1068735, 1353731, 1424980, 2137470, 2707462, 4061193, 4274940, 5414924, 6768655, 8122386, 13537310, 16244772, 20305965, 27074620, 40611930, 81223860]

約数ペア:

[(1, 81223860), (2, 40611930), (3, 27074620), (4, 20305965), (5, 16244772), (6, 13537310), (10, 8122386), (12, 6768655), (15, 5414924), (19, 4274940), (20, 4061193), (30, 2707462), (38, 2137470), (57, 1424980), (60, 1353731), (76, 1068735), (95, 854988), (114, 712490), (190, 427494), (228, 356245), (285, 284996), (380, 213747), (570, 142498), (1140, 71249)]