20260481805

素因数分解:

$3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1\times {\mathrm{1109}}^1$

素因数の和:1776

約数の個数: 80

約数和(自身を含む): 36876153600

約数和(自身を除く): 16615671795

約数列:

[1, 3, 5, 9, 15, 27, 45, 79, 81, 135, 237, 395, 405, 571, 711, 1109, 1185, 1713, 2133, 2855, 3327, 3555, 5139, 5545, 6399, 8565, 9981, 10665, 15417, 16635, 25695, 29943, 31995, 45109, 46251, 49905, 77085, 87611, 89829, 135327, 149715, 225545, 231255, 262833, 405981, 438055, 449145, 633239, 676635, 788499, 1217943, 1314165, 1899717, 2029905, 2365497, 3166195, 3653829, 3942495, 5699151, 6089715, 7096491, 9498585, 11827485, 17097453, 18269145, 28495755, 35482455, 50025881, 51292359, 85487265, 150077643, 250129405, 256461795, 450232929, 750388215, 1350698787, 2251164645, 4052096361, 6753493935, 20260481805]

約数ペア:

[(1, 20260481805), (3, 6753493935), (5, 4052096361), (9, 2251164645), (15, 1350698787), (27, 750388215), (45, 450232929), (79, 256461795), (81, 250129405), (135, 150077643), (237, 85487265), (395, 51292359), (405, 50025881), (571, 35482455), (711, 28495755), (1109, 18269145), (1185, 17097453), (1713, 11827485), (2133, 9498585), (2855, 7096491), (3327, 6089715), (3555, 5699151), (5139, 3942495), (5545, 3653829), (6399, 3166195), (8565, 2365497), (9981, 2029905), (10665, 1899717), (15417, 1314165), (16635, 1217943), (25695, 788499), (29943, 676635), (31995, 633239), (45109, 449145), (46251, 438055), (49905, 405981), (77085, 262833), (87611, 231255), (89829, 225545), (135327, 149715)]