821507280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311177}}^1$

素因数の和:311204

約数の個数: 80

約数和(自身を含む): 2778197184

約数和(自身を除く): 1956689904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 311177, 622354, 933531, 1244708, 1555885, 1867062, 2489416, 3111770, 3422947, 3734124, 4667655, 4978832, 6223540, 6845894, 7468248, 9335310, 10268841, 12447080, 13691788, 14936496, 17114735, 18670620, 20537682, 24894160, 27383576, 34229470, 37341240, 41075364, 51344205, 54767152, 68458940, 74682480, 82150728, 102688410, 136917880, 164301456, 205376820, 273835760, 410753640, 821507280]

約数ペア:

[(1, 821507280), (2, 410753640), (3, 273835760), (4, 205376820), (5, 164301456), (6, 136917880), (8, 102688410), (10, 82150728), (11, 74682480), (12, 68458940), (15, 54767152), (16, 51344205), (20, 41075364), (22, 37341240), (24, 34229470), (30, 27383576), (33, 24894160), (40, 20537682), (44, 18670620), (48, 17114735), (55, 14936496), (60, 13691788), (66, 12447080), (80, 10268841), (88, 9335310), (110, 7468248), (120, 6845894), (132, 6223540), (165, 4978832), (176, 4667655), (220, 3734124), (240, 3422947), (264, 3111770), (330, 2489416), (440, 1867062), (528, 1555885), (660, 1244708), (880, 933531), (1320, 622354), (2640, 311177)]