9125000

素因数分解:

$2^3\times 5^6\times {\mathrm{73}}^1$

素因数の和:109

約数の個数: 56

約数和(自身を含む): 21679410

約数和(自身を除く): 12554410

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 73, 100, 125, 146, 200, 250, 292, 365, 500, 584, 625, 730, 1000, 1250, 1460, 1825, 2500, 2920, 3125, 3650, 5000, 6250, 7300, 9125, 12500, 14600, 15625, 18250, 25000, 31250, 36500, 45625, 62500, 73000, 91250, 125000, 182500, 228125, 365000, 456250, 912500, 1140625, 1825000, 2281250, 4562500, 9125000]

約数ペア:

[(1, 9125000), (2, 4562500), (4, 2281250), (5, 1825000), (8, 1140625), (10, 912500), (20, 456250), (25, 365000), (40, 228125), (50, 182500), (73, 125000), (100, 91250), (125, 73000), (146, 62500), (200, 45625), (250, 36500), (292, 31250), (365, 25000), (500, 18250), (584, 15625), (625, 14600), (730, 12500), (1000, 9125), (1250, 7300), (1460, 6250), (1825, 5000), (2500, 3650), (2920, 3125)]