28771260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1203

約数の個数: 96

約数和(自身を含む): 93660672

約数和(自身を除く): 64889412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 915, 1123, 1220, 1281, 1708, 1830, 2135, 2246, 2562, 3369, 3660, 4270, 4492, 5124, 5615, 6405, 6738, 7861, 8540, 11230, 12810, 13476, 15722, 16845, 22460, 23583, 25620, 31444, 33690, 39305, 47166, 67380, 68503, 78610, 94332, 117915, 137006, 157220, 205509, 235830, 274012, 342515, 411018, 471660, 479521, 685030, 822036, 959042, 1027545, 1370060, 1438563, 1918084, 2055090, 2397605, 2877126, 4110180, 4795210, 5754252, 7192815, 9590420, 14385630, 28771260]

約数ペア:

[(1, 28771260), (2, 14385630), (3, 9590420), (4, 7192815), (5, 5754252), (6, 4795210), (7, 4110180), (10, 2877126), (12, 2397605), (14, 2055090), (15, 1918084), (20, 1438563), (21, 1370060), (28, 1027545), (30, 959042), (35, 822036), (42, 685030), (60, 479521), (61, 471660), (70, 411018), (84, 342515), (105, 274012), (122, 235830), (140, 205509), (183, 157220), (210, 137006), (244, 117915), (305, 94332), (366, 78610), (420, 68503), (427, 67380), (610, 47166), (732, 39305), (854, 33690), (915, 31444), (1123, 25620), (1220, 23583), (1281, 22460), (1708, 16845), (1830, 15722), (2135, 13476), (2246, 12810), (2562, 11230), (3369, 8540), (3660, 7861), (4270, 6738), (4492, 6405), (5124, 5615)]