28691880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{34157}}^1$

素因数の和:34178

約数の個数: 64

約数和(自身を含む): 98375040

約数和(自身を除く): 69683160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 34157, 68314, 102471, 136628, 170785, 204942, 239099, 273256, 341570, 409884, 478198, 512355, 683140, 717297, 819768, 956396, 1024710, 1195495, 1366280, 1434594, 1912792, 2049420, 2390990, 2869188, 3586485, 4098840, 4781980, 5738376, 7172970, 9563960, 14345940, 28691880]

約数ペア:

[(1, 28691880), (2, 14345940), (3, 9563960), (4, 7172970), (5, 5738376), (6, 4781980), (7, 4098840), (8, 3586485), (10, 2869188), (12, 2390990), (14, 2049420), (15, 1912792), (20, 1434594), (21, 1366280), (24, 1195495), (28, 1024710), (30, 956396), (35, 819768), (40, 717297), (42, 683140), (56, 512355), (60, 478198), (70, 409884), (84, 341570), (105, 273256), (120, 239099), (140, 204942), (168, 170785), (210, 136628), (280, 102471), (420, 68314), (840, 34157)]