90070000

素因数分解:

$2^4\times 5^4\times {\mathrm{9007}}^1$

素因数の和:9035

約数の個数: 50

約数和(自身を含む): 218092688

約数和(自身を除く): 128022688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 9007, 10000, 18014, 36028, 45035, 72056, 90070, 144112, 180140, 225175, 360280, 450350, 720560, 900700, 1125875, 1801400, 2251750, 3602800, 4503500, 5629375, 9007000, 11258750, 18014000, 22517500, 45035000, 90070000]

約数ペア:

[(1, 90070000), (2, 45035000), (4, 22517500), (5, 18014000), (8, 11258750), (10, 9007000), (16, 5629375), (20, 4503500), (25, 3602800), (40, 2251750), (50, 1801400), (80, 1125875), (100, 900700), (125, 720560), (200, 450350), (250, 360280), (400, 225175), (500, 180140), (625, 144112), (1000, 90070), (1250, 72056), (2000, 45035), (2500, 36028), (5000, 18014), (9007, 10000)]