15691315725

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{20639}}^1$

素因数の和:20795

約数の個数: 72

約数和(自身を含む): 29279078400

約数和(自身を除く): 13587762675

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 109, 155, 225, 279, 327, 465, 545, 775, 981, 1395, 1635, 2325, 2725, 3379, 4905, 6975, 8175, 10137, 16895, 20639, 24525, 30411, 50685, 61917, 84475, 103195, 152055, 185751, 253425, 309585, 515975, 639809, 760275, 928755, 1547925, 1919427, 2249651, 3199045, 4643775, 5758281, 6748953, 9597135, 11248255, 15995225, 20246859, 28791405, 33744765, 47985675, 56241275, 69739181, 101234295, 143957025, 168723825, 209217543, 348695905, 506171475, 627652629, 1046087715, 1743479525, 3138263145, 5230438575, 15691315725]

約数ペア:

[(1, 15691315725), (3, 5230438575), (5, 3138263145), (9, 1743479525), (15, 1046087715), (25, 627652629), (31, 506171475), (45, 348695905), (75, 209217543), (93, 168723825), (109, 143957025), (155, 101234295), (225, 69739181), (279, 56241275), (327, 47985675), (465, 33744765), (545, 28791405), (775, 20246859), (981, 15995225), (1395, 11248255), (1635, 9597135), (2325, 6748953), (2725, 5758281), (3379, 4643775), (4905, 3199045), (6975, 2249651), (8175, 1919427), (10137, 1547925), (16895, 928755), (20639, 760275), (24525, 639809), (30411, 515975), (50685, 309585), (61917, 253425), (84475, 185751), (103195, 152055)]