81208080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 180

約数和(自身を含む): 283790988

約数和(自身を除く): 202582908

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 61, 72, 80, 86, 90, 120, 122, 129, 144, 172, 180, 183, 215, 240, 244, 258, 305, 344, 360, 366, 387, 430, 488, 516, 549, 610, 645, 688, 720, 732, 774, 860, 915, 976, 1032, 1098, 1220, 1290, 1464, 1548, 1720, 1830, 1849, 1935, 2064, 2196, 2440, 2580, 2623, 2745, 2928, 3096, 3440, 3660, 3698, 3870, 4392, 4880, 5160, 5246, 5490, 5547, 6192, 7320, 7396, 7740, 7869, 8784, 9245, 10320, 10492, 10980, 11094, 13115, 14640, 14792, 15480, 15738, 16641, 18490, 20984, 21960, 22188, 23607, 26230, 27735, 29584, 30960, 31476, 33282, 36980, 39345, 41968, 43920, 44376, 47214, 52460, 55470, 62952, 66564, 73960, 78690, 83205, 88752, 94428, 104920, 110940, 112789, 118035, 125904, 133128, 147920, 157380, 166410, 188856, 209840, 221880, 225578, 236070, 266256, 314760, 332820, 338367, 377712, 443760, 451156, 472140, 563945, 629520, 665640, 676734, 902312, 944280, 1015101, 1127890, 1331280, 1353468, 1691835, 1804624, 1888560, 2030202, 2255780, 2706936, 3383670, 4060404, 4511560, 5075505, 5413872, 6767340, 8120808, 9023120, 10151010, 13534680, 16241616, 20302020, 27069360, 40604040, 81208080]

約数ペア:

[(1, 81208080), (2, 40604040), (3, 27069360), (4, 20302020), (5, 16241616), (6, 13534680), (8, 10151010), (9, 9023120), (10, 8120808), (12, 6767340), (15, 5413872), (16, 5075505), (18, 4511560), (20, 4060404), (24, 3383670), (30, 2706936), (36, 2255780), (40, 2030202), (43, 1888560), (45, 1804624), (48, 1691835), (60, 1353468), (61, 1331280), (72, 1127890), (80, 1015101), (86, 944280), (90, 902312), (120, 676734), (122, 665640), (129, 629520), (144, 563945), (172, 472140), (180, 451156), (183, 443760), (215, 377712), (240, 338367), (244, 332820), (258, 314760), (305, 266256), (344, 236070), (360, 225578), (366, 221880), (387, 209840), (430, 188856), (488, 166410), (516, 157380), (549, 147920), (610, 133128), (645, 125904), (688, 118035), (720, 112789), (732, 110940), (774, 104920), (860, 94428), (915, 88752), (976, 83205), (1032, 78690), (1098, 73960), (1220, 66564), (1290, 62952), (1464, 55470), (1548, 52460), (1720, 47214), (1830, 44376), (1849, 43920), (1935, 41968), (2064, 39345), (2196, 36980), (2440, 33282), (2580, 31476), (2623, 30960), (2745, 29584), (2928, 27735), (3096, 26230), (3440, 23607), (3660, 22188), (3698, 21960), (3870, 20984), (4392, 18490), (4880, 16641), (5160, 15738), (5246, 15480), (5490, 14792), (5547, 14640), (6192, 13115), (7320, 11094), (7396, 10980), (7740, 10492), (7869, 10320), (8784, 9245)]