19738568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21733432

約数列:

[1, 2, 4, 8, 19, 31, 38, 59, 62, 71, 76, 118, 124, 142, 152, 236, 248, 284, 472, 568, 589, 1121, 1178, 1349, 1829, 2201, 2242, 2356, 2698, 3658, 4189, 4402, 4484, 4712, 5396, 7316, 8378, 8804, 8968, 10792, 14632, 16756, 17608, 33512, 34751, 41819, 69502, 79591, 83638, 129859, 139004, 159182, 167276, 259718, 278008, 318364, 334552, 519436, 636728, 1038872, 2467321, 4934642, 9869284, 19738568]

約数ペア:

[(1, 19738568), (2, 9869284), (4, 4934642), (8, 2467321), (19, 1038872), (31, 636728), (38, 519436), (59, 334552), (62, 318364), (71, 278008), (76, 259718), (118, 167276), (124, 159182), (142, 139004), (152, 129859), (236, 83638), (248, 79591), (284, 69502), (472, 41819), (568, 34751), (589, 33512), (1121, 17608), (1178, 16756), (1349, 14632), (1829, 10792), (2201, 8968), (2242, 8804), (2356, 8378), (2698, 7316), (3658, 5396), (4189, 4712), (4402, 4484)]