28207970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 61931520

約数和(自身を除く): 33723550

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 127, 133, 167, 190, 254, 266, 334, 635, 665, 835, 889, 1169, 1270, 1330, 1670, 1778, 2338, 2413, 3173, 4445, 4826, 5845, 6346, 8890, 11690, 12065, 15865, 16891, 21209, 22211, 24130, 31730, 33782, 42418, 44422, 84455, 106045, 111055, 148463, 168910, 212090, 222110, 296926, 402971, 742315, 805942, 1484630, 2014855, 2820797, 4029710, 5641594, 14103985, 28207970]

約数ペア:

[(1, 28207970), (2, 14103985), (5, 5641594), (7, 4029710), (10, 2820797), (14, 2014855), (19, 1484630), (35, 805942), (38, 742315), (70, 402971), (95, 296926), (127, 222110), (133, 212090), (167, 168910), (190, 148463), (254, 111055), (266, 106045), (334, 84455), (635, 44422), (665, 42418), (835, 33782), (889, 31730), (1169, 24130), (1270, 22211), (1330, 21209), (1670, 16891), (1778, 15865), (2338, 12065), (2413, 11690), (3173, 8890), (4445, 6346), (4826, 5845)]