80525500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^5$

素因数の和:74

約数の個数: 72

約数和(自身を含む): 193454352

約数和(自身を除く): 112928852

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 125, 220, 242, 250, 275, 484, 500, 550, 605, 1100, 1210, 1331, 1375, 2420, 2662, 2750, 3025, 5324, 5500, 6050, 6655, 12100, 13310, 14641, 15125, 26620, 29282, 30250, 33275, 58564, 60500, 66550, 73205, 133100, 146410, 161051, 166375, 292820, 322102, 332750, 366025, 644204, 665500, 732050, 805255, 1464100, 1610510, 1830125, 3221020, 3660250, 4026275, 7320500, 8052550, 16105100, 20131375, 40262750, 80525500]

約数ペア:

[(1, 80525500), (2, 40262750), (4, 20131375), (5, 16105100), (10, 8052550), (11, 7320500), (20, 4026275), (22, 3660250), (25, 3221020), (44, 1830125), (50, 1610510), (55, 1464100), (100, 805255), (110, 732050), (121, 665500), (125, 644204), (220, 366025), (242, 332750), (250, 322102), (275, 292820), (484, 166375), (500, 161051), (550, 146410), (605, 133100), (1100, 73205), (1210, 66550), (1331, 60500), (1375, 58564), (2420, 33275), (2662, 30250), (2750, 29282), (3025, 26620), (5324, 15125), (5500, 14641), (6050, 13310), (6655, 12100)]