450800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{23}}^1$

素因数の和:55

約数の個数: 90

約数和(自身を含む): 1314648

約数和(自身を除く): 863848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 49, 50, 56, 70, 80, 92, 98, 100, 112, 115, 140, 161, 175, 184, 196, 200, 230, 245, 280, 322, 350, 368, 392, 400, 460, 490, 560, 575, 644, 700, 784, 805, 920, 980, 1127, 1150, 1225, 1288, 1400, 1610, 1840, 1960, 2254, 2300, 2450, 2576, 2800, 3220, 3920, 4025, 4508, 4600, 4900, 5635, 6440, 8050, 9016, 9200, 9800, 11270, 12880, 16100, 18032, 19600, 22540, 28175, 32200, 45080, 56350, 64400, 90160, 112700, 225400, 450800]

約数ペア:

[(1, 450800), (2, 225400), (4, 112700), (5, 90160), (7, 64400), (8, 56350), (10, 45080), (14, 32200), (16, 28175), (20, 22540), (23, 19600), (25, 18032), (28, 16100), (35, 12880), (40, 11270), (46, 9800), (49, 9200), (50, 9016), (56, 8050), (70, 6440), (80, 5635), (92, 4900), (98, 4600), (100, 4508), (112, 4025), (115, 3920), (140, 3220), (161, 2800), (175, 2576), (184, 2450), (196, 2300), (200, 2254), (230, 1960), (245, 1840), (280, 1610), (322, 1400), (350, 1288), (368, 1225), (392, 1150), (400, 1127), (460, 980), (490, 920), (560, 805), (575, 784), (644, 700)]