20940128

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 49351680

約数和(自身を除く): 28411552

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 31, 32, 38, 44, 62, 76, 88, 101, 124, 152, 176, 202, 209, 248, 304, 341, 352, 404, 418, 496, 589, 608, 682, 808, 836, 992, 1111, 1178, 1364, 1616, 1672, 1919, 2222, 2356, 2728, 3131, 3232, 3344, 3838, 4444, 4712, 5456, 6262, 6479, 6688, 7676, 8888, 9424, 10912, 12524, 12958, 15352, 17776, 18848, 21109, 25048, 25916, 30704, 34441, 35552, 42218, 50096, 51832, 59489, 61408, 68882, 84436, 100192, 103664, 118978, 137764, 168872, 207328, 237956, 275528, 337744, 475912, 551056, 654379, 675488, 951824, 1102112, 1308758, 1903648, 2617516, 5235032, 10470064, 20940128]

約数ペア:

[(1, 20940128), (2, 10470064), (4, 5235032), (8, 2617516), (11, 1903648), (16, 1308758), (19, 1102112), (22, 951824), (31, 675488), (32, 654379), (38, 551056), (44, 475912), (62, 337744), (76, 275528), (88, 237956), (101, 207328), (124, 168872), (152, 137764), (176, 118978), (202, 103664), (209, 100192), (248, 84436), (304, 68882), (341, 61408), (352, 59489), (404, 51832), (418, 50096), (496, 42218), (589, 35552), (608, 34441), (682, 30704), (808, 25916), (836, 25048), (992, 21109), (1111, 18848), (1178, 17776), (1364, 15352), (1616, 12958), (1672, 12524), (1919, 10912), (2222, 9424), (2356, 8888), (2728, 7676), (3131, 6688), (3232, 6479), (3344, 6262), (3838, 5456), (4444, 4712)]