28947780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1$

素因数の和:295

約数の個数: 120

約数和(自身を含む): 92207808

約数和(自身を除く): 63260028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 107, 108, 135, 162, 167, 180, 214, 270, 321, 324, 334, 405, 428, 501, 535, 540, 642, 668, 810, 835, 963, 1002, 1070, 1284, 1503, 1605, 1620, 1670, 1926, 2004, 2140, 2505, 2889, 3006, 3210, 3340, 3852, 4509, 4815, 5010, 5778, 6012, 6420, 7515, 8667, 9018, 9630, 10020, 11556, 13527, 14445, 15030, 17334, 17869, 18036, 19260, 22545, 27054, 28890, 30060, 34668, 35738, 43335, 45090, 53607, 54108, 57780, 67635, 71476, 86670, 89345, 90180, 107214, 135270, 160821, 173340, 178690, 214428, 268035, 270540, 321642, 357380, 482463, 536070, 643284, 804105, 964926, 1072140, 1447389, 1608210, 1929852, 2412315, 2894778, 3216420, 4824630, 5789556, 7236945, 9649260, 14473890, 28947780]

約数ペア:

[(1, 28947780), (2, 14473890), (3, 9649260), (4, 7236945), (5, 5789556), (6, 4824630), (9, 3216420), (10, 2894778), (12, 2412315), (15, 1929852), (18, 1608210), (20, 1447389), (27, 1072140), (30, 964926), (36, 804105), (45, 643284), (54, 536070), (60, 482463), (81, 357380), (90, 321642), (107, 270540), (108, 268035), (135, 214428), (162, 178690), (167, 173340), (180, 160821), (214, 135270), (270, 107214), (321, 90180), (324, 89345), (334, 86670), (405, 71476), (428, 67635), (501, 57780), (535, 54108), (540, 53607), (642, 45090), (668, 43335), (810, 35738), (835, 34668), (963, 30060), (1002, 28890), (1070, 27054), (1284, 22545), (1503, 19260), (1605, 18036), (1620, 17869), (1670, 17334), (1926, 15030), (2004, 14445), (2140, 13527), (2505, 11556), (2889, 10020), (3006, 9630), (3210, 9018), (3340, 8667), (3852, 7515), (4509, 6420), (4815, 6012), (5010, 5778)]