420128085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^2\times {\mathrm{59}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 754457760

約数和(自身を除く): 334329675

約数列:

[1, 3, 5, 13, 15, 39, 53, 59, 65, 159, 169, 177, 195, 265, 295, 507, 689, 767, 795, 845, 885, 2067, 2301, 2535, 2809, 3127, 3445, 3835, 8427, 8957, 9381, 9971, 10335, 11505, 14045, 15635, 26871, 29913, 36517, 40651, 42135, 44785, 46905, 49855, 109551, 121953, 134355, 149565, 165731, 182585, 203255, 474721, 497193, 528463, 547755, 609765, 828655, 1424163, 1585389, 2154503, 2373605, 2485965, 2642315, 6463509, 7120815, 7926945, 10772515, 28008539, 32317545, 84025617, 140042695, 420128085]

約数ペア:

[(1, 420128085), (3, 140042695), (5, 84025617), (13, 32317545), (15, 28008539), (39, 10772515), (53, 7926945), (59, 7120815), (65, 6463509), (159, 2642315), (169, 2485965), (177, 2373605), (195, 2154503), (265, 1585389), (295, 1424163), (507, 828655), (689, 609765), (767, 547755), (795, 528463), (845, 497193), (885, 474721), (2067, 203255), (2301, 182585), (2535, 165731), (2809, 149565), (3127, 134355), (3445, 121953), (3835, 109551), (8427, 49855), (8957, 46905), (9381, 44785), (9971, 42135), (10335, 40651), (11505, 36517), (14045, 29913), (15635, 26871)]