20154789025

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1451}}^1$

素因数の和:1544

約数の個数: 144

約数和(自身を含む): 33251264640

約数和(自身を除く): 13096475615

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, 1451, 1955, 2465, 2737, 2975, 3335, 3451, 4025, 4165, 4669, 5075, 5635, 7105, 7255, 9775, 10157, 11339, 12325, 13685, 16675, 17255, 19159, 20825, 23345, 24157, 24667, 28175, 32683, 33373, 35525, 36275, 42079, 50785, 56695, 68425, 71099, 79373, 86275, 95795, 116725, 120785, 123335, 163415, 166865, 172669, 210395, 233611, 253925, 283475, 294553, 355495, 396865, 478975, 555611, 567341, 603925, 616675, 715343, 817075, 834325, 863345, 967817, 1051975, 1168055, 1208683, 1472765, 1635277, 1777475, 1984325, 2061871, 2778055, 2836705, 3576715, 3971387, 4316725, 4839085, 5007401, 5840275, 6043415, 6774719, 7363825, 8176385, 10309355, 13890275, 14183525, 16452889, 17883575, 19856935, 24195425, 25037005, 27799709, 30217075, 33873595, 35051807, 40881925, 47423033, 51546775, 82264445, 99284675, 115170223, 125185025, 138998545, 169367975, 175259035, 237115165, 411322225, 575851115, 694992725, 806191561, 876295175, 1185575825, 2879255575, 4030957805, 20154789025]

約数ペア:

[(1, 20154789025), (5, 4030957805), (7, 2879255575), (17, 1185575825), (23, 876295175), (25, 806191561), (29, 694992725), (35, 575851115), (49, 411322225), (85, 237115165), (115, 175259035), (119, 169367975), (145, 138998545), (161, 125185025), (175, 115170223), (203, 99284675), (245, 82264445), (391, 51546775), (425, 47423033), (493, 40881925), (575, 35051807), (595, 33873595), (667, 30217075), (725, 27799709), (805, 25037005), (833, 24195425), (1015, 19856935), (1127, 17883575), (1225, 16452889), (1421, 14183525), (1451, 13890275), (1955, 10309355), (2465, 8176385), (2737, 7363825), (2975, 6774719), (3335, 6043415), (3451, 5840275), (4025, 5007401), (4165, 4839085), (4669, 4316725), (5075, 3971387), (5635, 3576715), (7105, 2836705), (7255, 2778055), (9775, 2061871), (10157, 1984325), (11339, 1777475), (12325, 1635277), (13685, 1472765), (16675, 1208683), (17255, 1168055), (19159, 1051975), (20825, 967817), (23345, 863345), (24157, 834325), (24667, 817075), (28175, 715343), (32683, 616675), (33373, 603925), (35525, 567341), (36275, 555611), (42079, 478975), (50785, 396865), (56695, 355495), (68425, 294553), (71099, 283475), (79373, 253925), (86275, 233611), (95795, 210395), (116725, 172669), (120785, 166865), (123335, 163415)]