20098100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^3\times {\mathrm{151}}^1$

素因数の和:198

約数の個数: 72

約数和(自身を含む): 48288576

約数和(自身を除く): 28190476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 151, 220, 242, 275, 302, 484, 550, 604, 605, 755, 1100, 1210, 1331, 1510, 1661, 2420, 2662, 3020, 3025, 3322, 3775, 5324, 6050, 6644, 6655, 7550, 8305, 12100, 13310, 15100, 16610, 18271, 26620, 33220, 33275, 36542, 41525, 66550, 73084, 83050, 91355, 133100, 166100, 182710, 200981, 365420, 401962, 456775, 803924, 913550, 1004905, 1827100, 2009810, 4019620, 5024525, 10049050, 20098100]

約数ペア:

[(1, 20098100), (2, 10049050), (4, 5024525), (5, 4019620), (10, 2009810), (11, 1827100), (20, 1004905), (22, 913550), (25, 803924), (44, 456775), (50, 401962), (55, 365420), (100, 200981), (110, 182710), (121, 166100), (151, 133100), (220, 91355), (242, 83050), (275, 73084), (302, 66550), (484, 41525), (550, 36542), (604, 33275), (605, 33220), (755, 26620), (1100, 18271), (1210, 16610), (1331, 15100), (1510, 13310), (1661, 12100), (2420, 8305), (2662, 7550), (3020, 6655), (3025, 6644), (3322, 6050), (3775, 5324)]