15972008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 34776000

約数和(自身を除く): 18803992

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 59, 76, 104, 118, 137, 152, 236, 247, 274, 472, 494, 548, 767, 988, 1096, 1121, 1534, 1781, 1976, 2242, 2603, 3068, 3562, 4484, 5206, 6136, 7124, 8083, 8968, 10412, 14248, 14573, 16166, 20824, 29146, 32332, 33839, 58292, 64664, 67678, 105079, 116584, 135356, 153577, 210158, 270712, 307154, 420316, 614308, 840632, 1228616, 1996501, 3993002, 7986004, 15972008]

約数ペア:

[(1, 15972008), (2, 7986004), (4, 3993002), (8, 1996501), (13, 1228616), (19, 840632), (26, 614308), (38, 420316), (52, 307154), (59, 270712), (76, 210158), (104, 153577), (118, 135356), (137, 116584), (152, 105079), (236, 67678), (247, 64664), (274, 58292), (472, 33839), (494, 32332), (548, 29146), (767, 20824), (988, 16166), (1096, 14573), (1121, 14248), (1534, 10412), (1781, 8968), (1976, 8083), (2242, 7124), (2603, 6136), (3068, 5206), (3562, 4484)]