251309580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{220447}}^1$

素因数の和:220478

約数の個数: 48

約数和(自身を含む): 740705280

約数和(自身を除く): 489395700

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, 220447, 440894, 661341, 881788, 1102235, 1322682, 2204470, 2645364, 3306705, 4188493, 4408940, 6613410, 8376986, 12565479, 13226820, 16753972, 20942465, 25130958, 41884930, 50261916, 62827395, 83769860, 125654790, 251309580]

約数ペア:

[(1, 251309580), (2, 125654790), (3, 83769860), (4, 62827395), (5, 50261916), (6, 41884930), (10, 25130958), (12, 20942465), (15, 16753972), (19, 13226820), (20, 12565479), (30, 8376986), (38, 6613410), (57, 4408940), (60, 4188493), (76, 3306705), (95, 2645364), (114, 2204470), (190, 1322682), (228, 1102235), (285, 881788), (380, 661341), (570, 440894), (1140, 220447)]