1319751251

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 1766427264

約数和(自身を除く): 446676013

約数列:

[1, 7, 13, 31, 49, 53, 91, 97, 169, 217, 371, 403, 637, 679, 689, 1183, 1261, 1519, 1643, 2597, 2821, 3007, 4753, 4823, 5141, 5239, 8281, 8827, 8957, 11501, 16393, 19747, 21049, 21359, 33761, 35987, 36673, 39091, 61789, 62699, 66833, 80507, 114751, 147343, 149513, 159371, 251909, 256711, 273637, 277667, 438893, 467831, 508183, 803257, 868829, 1046591, 1115597, 1915459, 1943669, 2071823, 3274817, 3557281, 6081803, 7809179, 13605683, 14502761, 24900967, 26933699, 42572621, 101519327, 188535893, 1319751251]

約数ペア:

[(1, 1319751251), (7, 188535893), (13, 101519327), (31, 42572621), (49, 26933699), (53, 24900967), (91, 14502761), (97, 13605683), (169, 7809179), (217, 6081803), (371, 3557281), (403, 3274817), (637, 2071823), (679, 1943669), (689, 1915459), (1183, 1115597), (1261, 1046591), (1519, 868829), (1643, 803257), (2597, 508183), (2821, 467831), (3007, 438893), (4753, 277667), (4823, 273637), (5141, 256711), (5239, 251909), (8281, 159371), (8827, 149513), (8957, 147343), (11501, 114751), (16393, 80507), (19747, 66833), (21049, 62699), (21359, 61789), (33761, 39091), (35987, 36673)]