9025000

素因数分解:

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

素因数の和:69

約数の個数: 72

約数和(自身を含む): 22322790

約数和(自身を除く): 13297790

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 361, 380, 475, 500, 625, 722, 760, 950, 1000, 1250, 1444, 1805, 1900, 2375, 2500, 2888, 3125, 3610, 3800, 4750, 5000, 6250, 7220, 9025, 9500, 11875, 12500, 14440, 18050, 19000, 23750, 25000, 36100, 45125, 47500, 59375, 72200, 90250, 95000, 118750, 180500, 225625, 237500, 361000, 451250, 475000, 902500, 1128125, 1805000, 2256250, 4512500, 9025000]

約数ペア:

[(1, 9025000), (2, 4512500), (4, 2256250), (5, 1805000), (8, 1128125), (10, 902500), (19, 475000), (20, 451250), (25, 361000), (38, 237500), (40, 225625), (50, 180500), (76, 118750), (95, 95000), (100, 90250), (125, 72200), (152, 59375), (190, 47500), (200, 45125), (250, 36100), (361, 25000), (380, 23750), (475, 19000), (500, 18050), (625, 14440), (722, 12500), (760, 11875), (950, 9500), (1000, 9025), (1250, 7220), (1444, 6250), (1805, 5000), (1900, 4750), (2375, 3800), (2500, 3610), (2888, 3125)]