28728304

素因数分解:

$2^4\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 80

約数和(自身を含む): 65352960

約数和(自身を除く): 36624656

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 71, 76, 88, 121, 142, 152, 176, 209, 242, 284, 304, 418, 484, 568, 781, 836, 968, 1136, 1331, 1349, 1562, 1672, 1936, 2299, 2662, 2698, 3124, 3344, 4598, 5324, 5396, 6248, 8591, 9196, 10648, 10792, 12496, 14839, 17182, 18392, 21296, 21584, 25289, 29678, 34364, 36784, 50578, 59356, 68728, 94501, 101156, 118712, 137456, 163229, 189002, 202312, 237424, 326458, 378004, 404624, 652916, 756008, 1305832, 1512016, 1795519, 2611664, 3591038, 7182076, 14364152, 28728304]

約数ペア:

[(1, 28728304), (2, 14364152), (4, 7182076), (8, 3591038), (11, 2611664), (16, 1795519), (19, 1512016), (22, 1305832), (38, 756008), (44, 652916), (71, 404624), (76, 378004), (88, 326458), (121, 237424), (142, 202312), (152, 189002), (176, 163229), (209, 137456), (242, 118712), (284, 101156), (304, 94501), (418, 68728), (484, 59356), (568, 50578), (781, 36784), (836, 34364), (968, 29678), (1136, 25289), (1331, 21584), (1349, 21296), (1562, 18392), (1672, 17182), (1936, 14839), (2299, 12496), (2662, 10792), (2698, 10648), (3124, 9196), (3344, 8591), (4598, 6248), (5324, 5396)]