13890275

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:93

約数の個数: 72

約数和(自身を含む): 22900320

約数和(自身を除く): 9010045

約数列:

[1, 5, 7, 17, 23, 25, 29, 35, 49, 85, 115, 119, 145, 161, 175, 203, 245, 391, 425, 493, 575, 595, 667, 725, 805, 833, 1015, 1127, 1225, 1421, 1955, 2465, 2737, 2975, 3335, 3451, 4025, 4165, 4669, 5075, 5635, 7105, 9775, 11339, 12325, 13685, 16675, 17255, 19159, 20825, 23345, 24157, 28175, 32683, 35525, 56695, 68425, 79373, 86275, 95795, 116725, 120785, 163415, 283475, 396865, 478975, 555611, 603925, 817075, 1984325, 2778055, 13890275]

約数ペア:

[(1, 13890275), (5, 2778055), (7, 1984325), (17, 817075), (23, 603925), (25, 555611), (29, 478975), (35, 396865), (49, 283475), (85, 163415), (115, 120785), (119, 116725), (145, 95795), (161, 86275), (175, 79373), (203, 68425), (245, 56695), (391, 35525), (425, 32683), (493, 28175), (575, 24157), (595, 23345), (667, 20825), (725, 19159), (805, 17255), (833, 16675), (1015, 13685), (1127, 12325), (1225, 11339), (1421, 9775), (1955, 7105), (2465, 5635), (2737, 5075), (2975, 4669), (3335, 4165), (3451, 4025)]