28916865

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 25918335

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 67, 69, 115, 135, 139, 201, 207, 335, 345, 417, 603, 621, 695, 1005, 1035, 1251, 1541, 1809, 2085, 3015, 3105, 3197, 3753, 4623, 6255, 7705, 9045, 9313, 9591, 13869, 15985, 18765, 23115, 27939, 28773, 41607, 46565, 47955, 69345, 83817, 86319, 139695, 143865, 208035, 214199, 251451, 419085, 431595, 642597, 1070995, 1257255, 1927791, 3212985, 5783373, 9638955, 28916865]

約数ペア:

[(1, 28916865), (3, 9638955), (5, 5783373), (9, 3212985), (15, 1927791), (23, 1257255), (27, 1070995), (45, 642597), (67, 431595), (69, 419085), (115, 251451), (135, 214199), (139, 208035), (201, 143865), (207, 139695), (335, 86319), (345, 83817), (417, 69345), (603, 47955), (621, 46565), (695, 41607), (1005, 28773), (1035, 27939), (1251, 23115), (1541, 18765), (1809, 15985), (2085, 13869), (3015, 9591), (3105, 9313), (3197, 9045), (3753, 7705), (4623, 6255)]