81587340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 258306048

約数和(自身を除く): 176718708

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 83, 86, 90, 127, 129, 166, 172, 180, 215, 249, 254, 258, 332, 381, 387, 415, 430, 498, 508, 516, 635, 645, 747, 762, 774, 830, 860, 996, 1143, 1245, 1270, 1290, 1494, 1524, 1548, 1660, 1905, 1935, 2286, 2490, 2540, 2580, 2988, 3569, 3735, 3810, 3870, 4572, 4980, 5461, 5715, 7138, 7470, 7620, 7740, 10541, 10707, 10922, 11430, 14276, 14940, 16383, 17845, 21082, 21414, 21844, 22860, 27305, 31623, 32121, 32766, 35690, 42164, 42828, 49149, 52705, 53535, 54610, 63246, 64242, 65532, 71380, 81915, 94869, 98298, 105410, 107070, 109220, 126492, 128484, 158115, 160605, 163830, 189738, 196596, 210820, 214140, 245745, 316230, 321210, 327660, 379476, 453263, 474345, 491490, 632460, 642420, 906526, 948690, 982980, 1359789, 1813052, 1897380, 2266315, 2719578, 4079367, 4532630, 5439156, 6798945, 8158734, 9065260, 13597890, 16317468, 20396835, 27195780, 40793670, 81587340]

約数ペア:

[(1, 81587340), (2, 40793670), (3, 27195780), (4, 20396835), (5, 16317468), (6, 13597890), (9, 9065260), (10, 8158734), (12, 6798945), (15, 5439156), (18, 4532630), (20, 4079367), (30, 2719578), (36, 2266315), (43, 1897380), (45, 1813052), (60, 1359789), (83, 982980), (86, 948690), (90, 906526), (127, 642420), (129, 632460), (166, 491490), (172, 474345), (180, 453263), (215, 379476), (249, 327660), (254, 321210), (258, 316230), (332, 245745), (381, 214140), (387, 210820), (415, 196596), (430, 189738), (498, 163830), (508, 160605), (516, 158115), (635, 128484), (645, 126492), (747, 109220), (762, 107070), (774, 105410), (830, 98298), (860, 94869), (996, 81915), (1143, 71380), (1245, 65532), (1270, 64242), (1290, 63246), (1494, 54610), (1524, 53535), (1548, 52705), (1660, 49149), (1905, 42828), (1935, 42164), (2286, 35690), (2490, 32766), (2540, 32121), (2580, 31623), (2988, 27305), (3569, 22860), (3735, 21844), (3810, 21414), (3870, 21082), (4572, 17845), (4980, 16383), (5461, 14940), (5715, 14276), (7138, 11430), (7470, 10922), (7620, 10707), (7740, 10541)]