19799824

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 45711360

約数和(自身を除く): 25911536

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 31, 38, 44, 62, 76, 88, 124, 152, 176, 191, 209, 248, 304, 341, 382, 418, 496, 589, 682, 764, 836, 1178, 1364, 1528, 1672, 2101, 2356, 2728, 3056, 3344, 3629, 4202, 4712, 5456, 5921, 6479, 7258, 8404, 9424, 11842, 12958, 14516, 16808, 23684, 25916, 29032, 33616, 39919, 47368, 51832, 58064, 65131, 79838, 94736, 103664, 112499, 130262, 159676, 224998, 260524, 319352, 449996, 521048, 638704, 899992, 1042096, 1237489, 1799984, 2474978, 4949956, 9899912, 19799824]

約数ペア:

[(1, 19799824), (2, 9899912), (4, 4949956), (8, 2474978), (11, 1799984), (16, 1237489), (19, 1042096), (22, 899992), (31, 638704), (38, 521048), (44, 449996), (62, 319352), (76, 260524), (88, 224998), (124, 159676), (152, 130262), (176, 112499), (191, 103664), (209, 94736), (248, 79838), (304, 65131), (341, 58064), (382, 51832), (418, 47368), (496, 39919), (589, 33616), (682, 29032), (764, 25916), (836, 23684), (1178, 16808), (1364, 14516), (1528, 12958), (1672, 11842), (2101, 9424), (2356, 8404), (2728, 7258), (3056, 6479), (3344, 5921), (3629, 5456), (4202, 4712)]