20171740725

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{491}}^1\times {\mathrm{1163}}^1$

素因数の和:1827

約数の個数: 72

約数和(自身を含む): 36465335712

約数和(自身を除く): 16293594987

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 491, 785, 1163, 1413, 1473, 2355, 2455, 3489, 3925, 4419, 5815, 7065, 7365, 10467, 11775, 12275, 17445, 22095, 29075, 35325, 36825, 52335, 77087, 87225, 110475, 182591, 231261, 261675, 385435, 547773, 571033, 693783, 912955, 1156305, 1643319, 1713099, 1927175, 2738865, 2855165, 3468915, 4564775, 5139297, 5781525, 8216595, 8565495, 13694325, 14275825, 17344575, 25696485, 41082975, 42827475, 89652181, 128482425, 268956543, 448260905, 806869629, 1344782715, 2241304525, 4034348145, 6723913575, 20171740725]

約数ペア:

[(1, 20171740725), (3, 6723913575), (5, 4034348145), (9, 2241304525), (15, 1344782715), (25, 806869629), (45, 448260905), (75, 268956543), (157, 128482425), (225, 89652181), (471, 42827475), (491, 41082975), (785, 25696485), (1163, 17344575), (1413, 14275825), (1473, 13694325), (2355, 8565495), (2455, 8216595), (3489, 5781525), (3925, 5139297), (4419, 4564775), (5815, 3468915), (7065, 2855165), (7365, 2738865), (10467, 1927175), (11775, 1713099), (12275, 1643319), (17445, 1156305), (22095, 912955), (29075, 693783), (35325, 571033), (36825, 547773), (52335, 385435), (77087, 261675), (87225, 231261), (110475, 182591)]